SqlUtil.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Data / System / Data / SqlClient / SqlUtil.cs / 1305376 / SqlUtil.cs

                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
//----------------------------------------------------------------------------- 
 
namespace System.Data.SqlClient {
    using System; 
    using System.ComponentModel;
    using System.Data;
    using System.Data.Common;
    using System.Diagnostics; 
    using System.Globalization;
    using System.Reflection; 
    using System.Runtime.Serialization.Formatters; 
    using System.Security;
    using System.Security.Permissions; 
    using System.Security.Principal;
    using System.Threading;
    using System.Text;
    using SysTx = System.Transactions; 
    using System.Runtime.Versioning;
 
    sealed internal class InOutOfProcHelper { 
        private static readonly InOutOfProcHelper SingletonInstance = new InOutOfProcHelper();
 
        private bool _inProc = false;

        // InOutOfProcHelper detects whether it's running inside the server or not.  It does this
        //  by checking for the existence of a well-known function export on the current process. 
        //  Note that calling conventions, etc. do not matter -- we'll never call the function, so
        //  only the name match or lack thereof matter. 
        [ResourceExposure(ResourceScope.None)] 
        [ResourceConsumption(ResourceScope.Process, ResourceScope.Process)]
        private InOutOfProcHelper() { 
            // Don't need to close this handle...
            // SxS: we use this method to check if we are running inside the SQL Server process. This call should be safe in SxS environment.
            IntPtr handle = SafeNativeMethods.GetModuleHandle(null);
            if (IntPtr.Zero != handle) { 
                // SQLBU 359301: Currently, the server exports different names for x86 vs. AMD64 and IA64.  Supporting both names
                //  for now gives the server time to unify names across platforms without breaking currently-working ones. 
                //  We can remove the obsolete name once the server is changed. 
                if (IntPtr.Zero != SafeNativeMethods.GetProcAddress(handle, "_______SQL______Process______Available@0")) {
                    _inProc = true; 
                }
                else if (IntPtr.Zero != SafeNativeMethods.GetProcAddress(handle, "______SQL______Process______Available")) {
                    _inProc = true;
                } 
            }
        } 
 
        internal static bool InProc {
            get { 
                return SingletonInstance._inProc;
            }
        }
    } 

    sealed internal class SQL { 
 
        private SQL() { /* prevent utility class from being insantiated*/ }
 
        // The class SQL defines the exceptions that are specific to the SQL Adapter.
        // The class contains functions that take the proper informational variables and then construct
        // the appropriate exception with an error string obtained from the resource Framework.txt.
        // The exception is then returned to the caller, so that the caller may then throw from its 
        // location so that the catcher of the exception will have the appropriate call stack.
        // This class is used so that there will be compile time checking of error 
        // messages.  The resource Framework.txt will ensure proper string text based on the appropriate 
        // locale.
 
        //
        // SQL specific exceptions
        //
 
        //
        // SQL.Connection 
        // 

        static internal Exception CannotGetDTCAddress() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_CannotGetDTCAddress));
        }

        static internal Exception InvalidOptionLength(string key) { 
            return ADP.Argument(Res.GetString(Res.SQL_InvalidOptionLength, key));
        } 
        static internal Exception InvalidInternalPacketSize (string str) { 
            return ADP.ArgumentOutOfRange (str);
        } 
        static internal Exception InvalidPacketSize() {
            return ADP.ArgumentOutOfRange (Res.GetString(Res.SQL_InvalidTDSPacketSize));
        }
        static internal Exception InvalidPacketSizeValue() { 
            return ADP.Argument(Res.GetString(Res.SQL_InvalidPacketSizeValue));
        } 
        static internal Exception InvalidSSPIPacketSize() { 
            return ADP.Argument(Res.GetString(Res.SQL_InvalidSSPIPacketSize));
        } 
        static internal Exception NullEmptyTransactionName() {
            return ADP.Argument(Res.GetString(Res.SQL_NullEmptyTransactionName));
        }
        static internal Exception SnapshotNotSupported(IsolationLevel level) { 
            return ADP.Argument(Res.GetString(Res.SQL_SnapshotNotSupported, typeof(IsolationLevel), level.ToString()));
        } 
        static internal Exception UserInstanceFailoverNotCompatible() { 
            return ADP.Argument(Res.GetString(Res.SQL_UserInstanceFailoverNotCompatible));
        } 
        static internal Exception InvalidSQLServerVersionUnknown() {
            return ADP.DataAdapter(Res.GetString(Res.SQL_InvalidSQLServerVersionUnknown));
        }
        static internal Exception ConnectionLockedForBcpEvent() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ConnectionLockedForBcpEvent));
        } 
        static internal Exception AsyncConnectionRequired() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_AsyncConnectionRequired));
        } 
        static internal Exception FatalTimeout() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_FatalTimeout));
        }
        static internal Exception InstanceFailure() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_InstanceFailure));
        } 
        static internal Exception ChangePasswordArgumentMissing(string argumentName) { 
            return ADP.ArgumentNull(Res.GetString(Res.SQL_ChangePasswordArgumentMissing, argumentName));
        } 
        static internal Exception ChangePasswordConflictsWithSSPI() {
            return ADP.Argument(Res.GetString(Res.SQL_ChangePasswordConflictsWithSSPI));
        }
        static internal Exception ChangePasswordRequiresYukon() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ChangePasswordRequiresYukon));
        } 
        static internal Exception UnknownSysTxIsolationLevel(SysTx.IsolationLevel isolationLevel) { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_UnknownSysTxIsolationLevel, isolationLevel.ToString()));
        } 
        static internal Exception ChangePasswordUseOfUnallowedKey (string key) {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ChangePasswordUseOfUnallowedKey, key));
        }
        static internal Exception InvalidPartnerConfiguration (string server, string database) { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_InvalidPartnerConfiguration, server, database));
        } 
        static internal Exception MARSUnspportedOnConnection() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_MarsUnsupportedOnConnection));
        } 

        static internal Exception AsyncInProcNotSupported() {
            return ADP.NotSupported(Res.GetString(Res.SQL_AsyncInProcNotSupported));
        } 
        static internal Exception CannotModifyPropertyAsyncOperationInProgress(string property) {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_CannotModifyPropertyAsyncOperationInProgress, property)); 
        } 
        static internal Exception NonLocalSSEInstance() {
            return ADP.NotSupported(Res.GetString(Res.SQL_NonLocalSSEInstance)); 
        }
        //
        // SQL.DataCommand
        // 
        static internal Exception NotificationsRequireYukon() {
            return ADP.NotSupported(Res.GetString(Res.SQL_NotificationsRequireYukon)); 
        } 

        static internal ArgumentOutOfRangeException NotSupportedEnumerationValue(Type type, int value) { 
            return ADP.ArgumentOutOfRange(Res.GetString(Res.SQL_NotSupportedEnumerationValue, type.Name, value.ToString(System.Globalization.CultureInfo.InvariantCulture)), type.Name);
        }

        static internal ArgumentOutOfRangeException NotSupportedCommandType(CommandType value) { 
#if DEBUG
            switch(value) { 
            case CommandType.Text: 
            case CommandType.StoredProcedure:
                Debug.Assert(false, "valid CommandType " + value.ToString()); 
                break;
            case CommandType.TableDirect:
                break;
            default: 
                Debug.Assert(false, "invalid CommandType " + value.ToString());
                break; 
            } 
#endif
            return NotSupportedEnumerationValue(typeof(CommandType), (int)value); 
        }
        static internal ArgumentOutOfRangeException NotSupportedIsolationLevel(IsolationLevel value) {
#if DEBUG
            switch(value) { 
            case IsolationLevel.Unspecified:
            case IsolationLevel.ReadCommitted: 
            case IsolationLevel.ReadUncommitted: 
            case IsolationLevel.RepeatableRead:
            case IsolationLevel.Serializable: 
            case IsolationLevel.Snapshot:
                Debug.Assert(false, "valid IsolationLevel " + value.ToString());
                break;
            case IsolationLevel.Chaos: 
                break;
            default: 
                Debug.Assert(false, "invalid IsolationLevel " + value.ToString()); 
                break;
            } 
#endif
            return NotSupportedEnumerationValue(typeof(IsolationLevel), (int)value);
        }
 
        static internal Exception OperationCancelled() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_OperationCancelled)); 
        } 

        static internal Exception PendingBeginXXXExists() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_PendingBeginXXXExists));
        }

        static internal ArgumentOutOfRangeException InvalidSqlDependencyTimeout(string param) { 
            return ADP.ArgumentOutOfRange(Res.GetString(Res.SqlDependency_InvalidTimeout), param);
        } 
 
        static internal Exception NonXmlResult() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_NonXmlResult)); 
        }

        //
        // SQL.DataParameter 
        //
        static internal Exception InvalidUdt3PartNameFormat() { 
            return ADP.Argument(Res.GetString(Res.SQL_InvalidUdt3PartNameFormat)); 
        }
        static internal Exception InvalidParameterTypeNameFormat() { 
            return ADP.Argument(Res.GetString(Res.SQL_InvalidParameterTypeNameFormat));
        }
        static internal Exception InvalidParameterNameLength(string value) {
            return ADP.Argument(Res.GetString(Res.SQL_InvalidParameterNameLength, value)); 
        }
        static internal Exception PrecisionValueOutOfRange(byte precision) { 
            return ADP.Argument(Res.GetString(Res.SQL_PrecisionValueOutOfRange, precision.ToString(CultureInfo.InvariantCulture))); 
        }
        static internal Exception ScaleValueOutOfRange(byte scale) { 
            return ADP.Argument(Res.GetString(Res.SQL_ScaleValueOutOfRange, scale.ToString(CultureInfo.InvariantCulture)));
        }
        static internal Exception TimeScaleValueOutOfRange(byte scale) {
            return ADP.Argument(Res.GetString(Res.SQL_TimeScaleValueOutOfRange, scale.ToString(CultureInfo.InvariantCulture))); 
        }
        static internal Exception InvalidSqlDbType(SqlDbType value) { 
            return ADP.InvalidEnumerationValue(typeof(SqlDbType), (int) value); 
        }
        static internal Exception UnsupportedTVPOutputParameter(ParameterDirection direction, string paramName) { 
            return ADP.NotSupported(Res.GetString(Res.SqlParameter_UnsupportedTVPOutputParameter,
                        direction.ToString(), paramName));
        }
        static internal Exception DBNullNotSupportedForTVPValues(string paramName) { 
            return ADP.NotSupported(Res.GetString(Res.SqlParameter_DBNullNotSupportedForTVP, paramName));
        } 
        static internal Exception InvalidTableDerivedPrecisionForTvp(string columnName, byte precision) { 
            return ADP.InvalidOperation(Res.GetString(Res.SqlParameter_InvalidTableDerivedPrecisionForTvp, precision, columnName, System.Data.SqlTypes.SqlDecimal.MaxPrecision));
        } 
        static internal Exception UnexpectedTypeNameForNonStructParams(string paramName) {
            return ADP.NotSupported(Res.GetString(Res.SqlParameter_UnexpectedTypeNameForNonStruct, paramName));
        }
        static internal Exception SingleValuedStructNotSupported() { 
            return ADP.NotSupported(Res.GetString(Res.MetaType_SingleValuedStructNotSupported));
        } 
        static internal Exception ParameterInvalidVariant(string paramName) { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ParameterInvalidVariant, paramName));
        } 

        static internal Exception MustSetTypeNameForParam(string paramType, string paramName) {
            return ADP.Argument(Res.GetString(Res.SQL_ParameterTypeNameRequired, paramType, paramName));
        } 
        static internal Exception NullSchemaTableDataTypeNotSupported(string columnName) {
            return ADP.Argument(Res.GetString(Res.NullSchemaTableDataTypeNotSupported, columnName)); 
        } 
        static internal Exception InvalidSchemaTableOrdinals() {
            return ADP.Argument(Res.GetString(Res.InvalidSchemaTableOrdinals)); 
        }
        static internal Exception EnumeratedRecordMetaDataChanged(string fieldName, int recordNumber) {
            return ADP.Argument(Res.GetString(Res.SQL_EnumeratedRecordMetaDataChanged, fieldName, recordNumber));
        } 
        static internal Exception EnumeratedRecordFieldCountChanged(int recordNumber) {
            return ADP.Argument(Res.GetString(Res.SQL_EnumeratedRecordFieldCountChanged, recordNumber)); 
        } 

        // 
        // SQL.SqlDataAdapter
        //

        // 
        // SQL.TDSParser
        // 
        static internal Exception InvalidTDSVersion() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_InvalidTDSVersion));
        } 
        static internal Exception ParsingError() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ParsingError));
        }
        static internal Exception MoneyOverflow(string moneyValue) { 
            return ADP.Overflow(Res.GetString(Res.SQL_MoneyOverflow, moneyValue));
        } 
        static internal Exception SmallDateTimeOverflow(string datetime) { 
            return ADP.Overflow(Res.GetString(Res.SQL_SmallDateTimeOverflow, datetime));
        } 
        static internal Exception SNIPacketAllocationFailure() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_SNIPacketAllocationFailure));
        }
        static internal Exception TimeOverflow(string time) { 
            return ADP.Overflow(Res.GetString(Res.SQL_TimeOverflow, time));
        } 
 
        //
        // SQL.SqlDataReader 
        //
        static internal Exception InvalidRead() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_InvalidRead));
        } 

        static internal Exception NonBlobColumn(string columnName) { 
            return ADP.InvalidCast(Res.GetString(Res.SQL_NonBlobColumn, columnName)); 
        }
 
        static internal Exception NonCharColumn(string columnName) {
            return ADP.InvalidCast(Res.GetString(Res.SQL_NonCharColumn, columnName));
        }
        static internal Exception UDTUnexpectedResult(string exceptionText){ 
        	return ADP.TypeLoad(Res.GetString(Res.SQLUDT_Unexpected,exceptionText));
        } 
 
#if WINFSFunctionality
        static internal Exception UDTInvalidDbId(int dbId,int typeId){ 
        	return ADP.TypeLoad(Res.GetString(Res.SQLUDT_InvalidDbId,dbId,typeId));
        }

        static internal Exception UDTCantLoadAssembly(string assemblyName){ 
        	return ADP.TypeLoad(Res.GetString(Res.SQLUDT_CantLoadAssembly,assemblyName));
        } 
 
        static internal InvalidOperationException UDTInWhereClause() {
            return ADP.InvalidOperation(Res.GetString(Res.SQLUDT_InWhereClause)); 
        }
#endif

/* 
        Auto assembly download disabled for Whidbey.
        static internal Exception UDTAssemblyDownloadNotEnabled(){ 
        	return ADP.TypeLoad(Res.GetString(Res.SQLUDT_CantLoadAssembly, Res.GetString(Res.SQLUDT_AssemblyDownloadNotEnabled))); 
        }
*/ 


        //
        // SQL.SqlDelegatedTransaction 
        //
        static internal Exception CannotCompleteDelegatedTransactionWithOpenResults() { 
            SqlErrorCollection errors = new SqlErrorCollection(); 
            errors.Add(new SqlError(TdsEnums.TIMEOUT_EXPIRED, (byte)0x00, TdsEnums.MIN_ERROR_CLASS, null, (Res.GetString(Res.ADP_OpenReaderExists)), "", 0));
            return SqlException.CreateException(errors, null); 
        }
        static internal SysTx.TransactionPromotionException PromotionFailed(Exception inner) {
            SysTx.TransactionPromotionException e = new SysTx.TransactionPromotionException(Res.GetString(Res.SqlDelegatedTransaction_PromotionFailed), inner);
            ADP.TraceExceptionAsReturnValue(e); 
            return e;
        } 
 
        //
        // SQL.SqlDependency 
        //
        static internal Exception SqlCommandHasExistingSqlNotificationRequest(){
            return ADP.InvalidOperation(Res.GetString(Res.SQLNotify_AlreadyHasCommand));
        } 

        static internal Exception SqlDepCannotBeCreatedInProc() { 
            return ADP.InvalidOperation(Res.GetString(Res.SqlNotify_SqlDepCannotBeCreatedInProc)); 
        }
 
        static internal Exception SqlDepDefaultOptionsButNoStart() {
            return ADP.InvalidOperation(Res.GetString(Res.SqlDependency_DefaultOptionsButNoStart));
        }
 
        static internal Exception SqlDependencyDatabaseBrokerDisabled() {
            return ADP.InvalidOperation(Res.GetString(Res.SqlDependency_DatabaseBrokerDisabled)); 
        } 

        static internal Exception SqlDependencyEventNoDuplicate() { 
            return ADP.InvalidOperation(Res.GetString(Res.SqlDependency_EventNoDuplicate));
        }

        static internal Exception SqlDependencyDuplicateStart() { 
            return ADP.InvalidOperation(Res.GetString(Res.SqlDependency_DuplicateStart));
        } 
 
        static internal Exception SqlDependencyIdMismatch() {
            // do not include the id because it may require SecurityPermission(Infrastructure) permission 
            return ADP.InvalidOperation(Res.GetString(Res.SqlDependency_IdMismatch));
        }

        static internal Exception SqlDependencyNoMatchingServerStart() { 
            return ADP.InvalidOperation(Res.GetString(Res.SqlDependency_NoMatchingServerStart));
        } 
 
        static internal Exception SqlDependencyNoMatchingServerDatabaseStart() {
            return ADP.InvalidOperation(Res.GetString(Res.SqlDependency_NoMatchingServerDatabaseStart)); 
        }

        static internal Exception SqlNotificationException(SqlNotificationEventArgs notify){
            return ADP.InvalidOperation(Res.GetString(Res.SQLNotify_ErrorFormat, notify.Type,notify.Info,notify.Source)); 
        }
 
        // 
        // SQL.SqlMetaData
        // 
        static internal Exception SqlMetaDataNoMetaData(){
            return ADP.InvalidOperation(Res.GetString(Res.SqlMetaData_NoMetadata));
        }
 
        static internal Exception MustSetUdtTypeNameForUdtParams(){
            return ADP.Argument(Res.GetString(Res.SQLUDT_InvalidUdtTypeName)); 
        } 

        static internal Exception UnexpectedUdtTypeNameForNonUdtParams(){ 
            return ADP.Argument(Res.GetString(Res.SQLUDT_UnexpectedUdtTypeName));
        }

        static internal Exception UDTInvalidSqlType(string typeName){ 
            return ADP.Argument(Res.GetString(Res.SQLUDT_InvalidSqlType, typeName));
        } 
 
        static internal Exception InvalidSqlDbTypeForConstructor(SqlDbType type) {
            return ADP.Argument(Res.GetString(Res.SqlMetaData_InvalidSqlDbTypeForConstructorFormat, type.ToString())); 
        }

        static internal Exception NameTooLong(string parameterName) {
            return ADP.Argument(Res.GetString(Res.SqlMetaData_NameTooLong), parameterName); 
        }
 
        static internal Exception InvalidSortOrder(SortOrder order) { 
            return ADP.InvalidEnumerationValue(typeof(SortOrder), (int)order);
        } 

        static internal Exception MustSpecifyBothSortOrderAndOrdinal(SortOrder order, int ordinal) {
            return ADP.InvalidOperation(Res.GetString(Res.SqlMetaData_SpecifyBothSortOrderAndOrdinal, order.ToString(), ordinal));
        } 

        static internal Exception TableTypeCanOnlyBeParameter() { 
            return ADP.Argument(Res.GetString(Res.SQLTVP_TableTypeCanOnlyBeParameter)); 
        }
        static internal Exception UnsupportedColumnTypeForSqlProvider(string columnName, string typeName) { 
            return ADP.Argument(Res.GetString(Res.SqlProvider_InvalidDataColumnType, columnName, typeName));
        }
        static internal Exception InvalidColumnMaxLength(string columnName, long maxLength) {
            return ADP.Argument(Res.GetString(Res.SqlProvider_InvalidDataColumnMaxLength, columnName, maxLength)); 
        }
        static internal Exception InvalidColumnPrecScale() { 
            return ADP.Argument(Res.GetString(Res.SqlMisc_InvalidPrecScaleMessage)); 
        }
        static internal Exception NotEnoughColumnsInStructuredType() { 
            return ADP.Argument(Res.GetString(Res.SqlProvider_NotEnoughColumnsInStructuredType));
        }
        static internal Exception DuplicateSortOrdinal(int sortOrdinal) {
            return ADP.InvalidOperation(Res.GetString(Res.SqlProvider_DuplicateSortOrdinal, sortOrdinal)); 
        }
        static internal Exception MissingSortOrdinal(int sortOrdinal) { 
            return ADP.InvalidOperation(Res.GetString(Res.SqlProvider_MissingSortOrdinal, sortOrdinal)); 
        }
        static internal Exception SortOrdinalGreaterThanFieldCount(int columnOrdinal, int sortOrdinal) { 
            return ADP.InvalidOperation(Res.GetString(Res.SqlProvider_SortOrdinalGreaterThanFieldCount, sortOrdinal, columnOrdinal));
        }
        static internal Exception IEnumerableOfSqlDataRecordHasNoRows() {
            return ADP.Argument(Res.GetString(Res.IEnumerableOfSqlDataRecordHasNoRows)); 
        }
 
 

        // 
        //  SqlPipe
        //
        static internal Exception SqlPipeCommandHookedUpToNonContextConnection() {
            return ADP.InvalidOperation(Res.GetString(Res.SqlPipe_CommandHookedUpToNonContextConnection)); 
        }
 
        static internal Exception SqlPipeMessageTooLong( int messageLength ) { 
            return ADP.Argument(Res.GetString(Res.SqlPipe_MessageTooLong, messageLength));
        } 

        static internal Exception SqlPipeIsBusy() {
            return ADP.InvalidOperation(Res.GetString(Res.SqlPipe_IsBusy));
        } 

        static internal Exception SqlPipeAlreadyHasAnOpenResultSet( string methodName ) { 
            return ADP.InvalidOperation(Res.GetString(Res.SqlPipe_AlreadyHasAnOpenResultSet, methodName)); 
        }
 
        static internal Exception SqlPipeDoesNotHaveAnOpenResultSet( string methodName ) {
            return ADP.InvalidOperation(Res.GetString(Res.SqlPipe_DoesNotHaveAnOpenResultSet, methodName));
        }
 
        //
        // : ISqlResultSet 
        // 
        static internal Exception SqlResultSetClosed(string methodname) {
            if (methodname == null) { 
                return ADP.InvalidOperation(Res.GetString(Res.SQL_SqlResultSetClosed2));
            }
            return ADP.InvalidOperation(Res.GetString(Res.SQL_SqlResultSetClosed, methodname));
        } 
        static internal Exception SqlResultSetNoData(string methodname) {
            return ADP.InvalidOperation(Res.GetString(Res.ADP_DataReaderNoData, methodname)); 
        } 
        static internal Exception SqlRecordReadOnly(string methodname) {
            if (methodname == null) { 
                return ADP.InvalidOperation(Res.GetString(Res.SQL_SqlRecordReadOnly2));
            }
            return ADP.InvalidOperation(Res.GetString(Res.SQL_SqlRecordReadOnly, methodname));
        } 

        static internal Exception SqlResultSetRowDeleted(string methodname) { 
            if (methodname == null) { 
                return ADP.InvalidOperation(Res.GetString(Res.SQL_SqlResultSetRowDeleted2));
            } 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_SqlResultSetRowDeleted, methodname));
        }

        static internal Exception SqlResultSetCommandNotInSameConnection() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_SqlResultSetCommandNotInSameConnection));
        } 
 
        static internal Exception SqlResultSetNoAcceptableCursor() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_SqlResultSetNoAcceptableCursor)); 
        }

        //
        // SQL.BulkLoad 
        //
        static internal Exception BulkLoadMappingInaccessible() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadMappingInaccessible)); 
        }
        static internal Exception BulkLoadMappingsNamesOrOrdinalsOnly() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadMappingsNamesOrOrdinalsOnly));
        }
        static internal Exception BulkLoadCannotConvertValue(Type sourcetype, MetaType metatype, Exception e) {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadCannotConvertValue, sourcetype.Name, metatype.TypeName), e); 
        }
        static internal Exception BulkLoadNonMatchingColumnMapping() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadNonMatchingColumnMapping)); 
        }
        static internal Exception BulkLoadNonMatchingColumnName(string columnName) { 
            return BulkLoadNonMatchingColumnName(columnName, null);
        }
        static internal Exception BulkLoadNonMatchingColumnName(string columnName, Exception e) {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadNonMatchingColumnName, columnName), e); 
        }
        static internal Exception BulkLoadStringTooLong() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadStringTooLong)); 
        }
        static internal Exception BulkLoadInvalidVariantValue() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadInvalidVariantValue));
        }
        static internal Exception BulkLoadInvalidTimeout(int timeout) {
            return ADP.Argument(Res.GetString(Res.SQL_BulkLoadInvalidTimeout, timeout.ToString(CultureInfo.InvariantCulture))); 
        }
        static internal Exception BulkLoadExistingTransaction() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadExistingTransaction)); 
        }
        static internal Exception BulkLoadNoCollation() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadNoCollation));
        }
        static internal Exception BulkLoadConflictingTransactionOption() {
            return ADP.Argument(Res.GetString(Res.SQL_BulkLoadConflictingTransactionOption)); 
        }
        static internal Exception BulkLoadLcidMismatch(int sourceLcid, string sourceColumnName, int destinationLcid, string destinationColumnName) { 
            return ADP.InvalidOperation (Res.GetString (Res.Sql_BulkLoadLcidMismatch, sourceLcid, sourceColumnName, destinationLcid, destinationColumnName)); 
        }
        static internal Exception InvalidOperationInsideEvent() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadInvalidOperationInsideEvent));
        }
        static internal Exception BulkLoadMissingDestinationTable() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadMissingDestinationTable)); 
        }
        static internal Exception BulkLoadInvalidDestinationTable(string tableName, Exception inner) { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadInvalidDestinationTable, tableName), inner); 
        }
        static internal Exception BulkLoadBulkLoadNotAllowDBNull(string columnName) { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BulkLoadNotAllowDBNull, columnName));
        }

        // 
        // transactions.
        // 
        static internal Exception ConnectionDoomed() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ConnectionDoomed));
        } 

        static internal readonly byte[] AttentionHeader = new byte[] {
            TdsEnums.MT_ATTN,               // Message Type
            TdsEnums.ST_EOM,                // Status 
            TdsEnums.HEADER_LEN >> 8,       // length - upper byte
            TdsEnums.HEADER_LEN & 0xff,     // length - lower byte 
            0,                              // spid 
            0,                              // spid
            0,                              // packet (out of band) 
            0                               // window
        };

        // 
        // Merged Provider
        // 
        static internal Exception BatchedUpdatesNotAvailableOnContextConnection() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_BatchedUpdatesNotAvailableOnContextConnection));
        } 
        static internal Exception ContextAllowsLimitedKeywords() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ContextAllowsLimitedKeywords));
        }
        static internal Exception ContextAllowsOnlyTypeSystem2005() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ContextAllowsOnlyTypeSystem2005));
        } 
        static internal Exception ContextConnectionIsInUse() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ContextConnectionIsInUse));
        } 
        static internal Exception ContextUnavailableOutOfProc() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ContextUnavailableOutOfProc));
        }
        static internal Exception ContextUnavailableWhileInProc() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_ContextUnavailableWhileInProc));
        } 
        static internal Exception NestedTransactionScopesNotSupported() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_NestedTransactionScopesNotSupported));
        } 
        static internal Exception NotAvailableOnContextConnection() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_NotAvailableOnContextConnection));
        }
        static internal Exception NotificationsNotAvailableOnContextConnection() { 
            return ADP.InvalidOperation(Res.GetString(Res.SQL_NotificationsNotAvailableOnContextConnection));
        } 
        static internal Exception UnexpectedSmiEvent(Microsoft.SqlServer.Server.SmiEventSink_Default.UnexpectedEventType eventType) { 
            Debug.Assert(false, "UnexpectedSmiEvent: "+eventType.ToString());    // Assert here, because these exceptions will most likely be eaten by the server.
            return ADP.InvalidOperation(Res.GetString(Res.SQL_UnexpectedSmiEvent, (int)eventType)); 
        }
        static internal Exception UserInstanceNotAvailableInProc() {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_UserInstanceNotAvailableInProc));
        } 
        static internal Exception ArgumentLengthMismatch( string arg1, string arg2 ) {
            return ADP.Argument( Res.GetString( Res.SQL_ArgumentLengthMismatch, arg1, arg2 ) ); 
        } 
        static internal Exception InvalidSqlDbTypeOneAllowedType( SqlDbType invalidType, string method, SqlDbType allowedType ) {
            return ADP.Argument( Res.GetString( Res.SQL_InvalidSqlDbTypeWithOneAllowedType, invalidType, method, allowedType ) ); 
        }
        static internal Exception SqlPipeErrorRequiresSendEnd( ) {
            return ADP.InvalidOperation(Res.GetString(Res.SQL_PipeErrorRequiresSendEnd));
        } 
        static internal Exception TooManyValues(string arg) {
            return ADP.Argument(Res.GetString(Res.SQL_TooManyValues), arg); 
        } 
        static internal Exception StreamWriteNotSupported() {
            return ADP.NotSupported(Res.GetString(Res.SQL_StreamWriteNotSupported)); 
        }
        static internal Exception StreamReadNotSupported() {
            return ADP.NotSupported(Res.GetString(Res.SQL_StreamReadNotSupported));
        } 
        static internal Exception StreamSeekNotSupported() {
            return ADP.NotSupported(Res.GetString(Res.SQL_StreamSeekNotSupported)); 
        } 
        static internal System.Data.SqlTypes.SqlNullValueException SqlNullValue() {
            System.Data.SqlTypes.SqlNullValueException e = new System.Data.SqlTypes.SqlNullValueException(); 
            ADP.TraceExceptionAsReturnValue(e);
            return e;
        }
        // SQLBU 402363: Exception to prevent Parameter.Size data corruption case from working. 
        //  This should be temporary until changing to correct behavior can be safely implemented.
        static internal Exception ParameterSizeRestrictionFailure(int index) { 
            return ADP.InvalidOperation(Res.GetString(Res.OleDb_CommandParameterError, index.ToString(CultureInfo.InvariantCulture), "SqlParameter.Size")); 
        }
        static internal Exception SubclassMustOverride() { 
            return ADP.InvalidOperation(Res.GetString(Res.SqlMisc_SubclassMustOverride));
        }

        // BulkLoad 
        internal const string WriteToServer = "WriteToServer";
 
        // Default values for SqlDependency and SqlNotificationRequest 
        internal const int SqlDependencyTimeoutDefault = 0;
        internal const int SqlDependencyServerTimeout  = 5 * 24 * 3600; // 5 days - used to compute default TTL of the dependency 
        internal const string SqlNotificationServiceDefault         = "SqlQueryNotificationService";
        internal const string SqlNotificationStoredProcedureDefault = "SqlQueryNotificationStoredProcedure";

         // constant strings 
        internal const string Transaction= "Transaction";
        internal const string Connection = "Connection"; 
    } 

    sealed internal class SQLMessage { 

        //

        private SQLMessage() { /* prevent utility class from being insantiated*/ } 

        // The class SQLMessage defines the error messages that are specific to the SqlDataAdapter 
        // that are caused by a netlib error.  The functions will be called and then return the 
        // appropriate error message from the resource Framework.txt.  The SqlDataAdapter will then
        // take the error message and then create a SqlError for the message and then place 
        // that into a SqlException that is either thrown to the user or cached for throwing at
        // a later time.  This class is used so that there will be compile time checking of error
        // messages.  The resource Framework.txt will ensure proper string text based on the appropriate
        // locale. 

        static internal string CultureIdError() { 
            return Res.GetString(Res.SQL_CultureIdError); 
        }
        static internal string EncryptionNotSupportedByClient() { 
            return Res.GetString(Res.SQL_EncryptionNotSupportedByClient);
        }
        static internal string EncryptionNotSupportedByServer() {
            return Res.GetString(Res.SQL_EncryptionNotSupportedByServer); 
        }
        static internal string OperationCancelled() { 
            return Res.GetString(Res.SQL_OperationCancelled); 
        }
        static internal string SevereError() { 
            return Res.GetString(Res.SQL_SevereError);
        }
        static internal string SSPIInitializeError() {
            return Res.GetString(Res.SQL_SSPIInitializeError); 
        }
        static internal string SSPIGenerateError() { 
            return Res.GetString(Res.SQL_SSPIGenerateError); 
        }
        static internal string Timeout() { 
            return Res.GetString(Res.SQL_Timeout);
        }
        static internal string UserInstanceFailure() {
            return Res.GetString(Res.SQL_UserInstanceFailure); 
        }
    } 
 
    /// 
    /// This class holds helper methods to escape Microsoft SQL Server identifiers, such as table, schema, database or other names 
    /// 
    static internal class SqlServerEscapeHelper {

        ///  
        /// Escapes the identifier with square brackets. The input has to be in unescaped form, like the parts received from MultipartIdentifier.ParseMultipartIdentifier.
        ///  
        /// name of the identifier, in unescaped form 
        /// escapes the name with [], also escapes the last close bracket with double-bracket
        static internal string EscapeIdentifier(string name) { 
            Debug.Assert(!ADP.IsEmpty(name), "null or empty identifiers are not allowed");
            return "[" + name.Replace("]", "]]") + "]";
        }
 
        /// 
        /// Same as above EscapeIdentifier, except that output is written into StringBuilder 
        ///  
        static internal void EscapeIdentifier(StringBuilder builder, string name) {
            Debug.Assert(builder != null, "builder cannot be null"); 
            Debug.Assert(!ADP.IsEmpty(name), "null or empty identifiers are not allowed");

            builder.Append("[");
            builder.Append(name.Replace("]", "]]")); 
            builder.Append("]");
        } 
 
        /// 
        ///  Escape a string to be used inside TSQL literal, such as N'somename' or 'somename' 
        /// 
        static internal string EscapeStringAsLiteral(string input) {
            Debug.Assert(input != null, "input string cannot be null");
            return input.Replace("'", "''"); 
        }
 
        ///  
        /// Escape a string as a TSQL literal, wrapping it around with single quotes.
        /// Use this method to escape input strings to prevent SQL injection 
        /// and to get correct behavior for embedded quotes.
        /// 
        /// unescaped string
        /// escaped and quoted literal string 
        static internal string MakeStringLiteral(string input) {
            if (ADP.IsEmpty(input)) { 
                return "''"; 
            }
            else { 
                return "'" + EscapeStringAsLiteral(input) + "'";
            }
        }
    } 
}//namespace

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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