Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Data / System / Data / Common / DbDataSourceEnumerator.cs / 1305376 / DbDataSourceEnumerator.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Diagnostics; using System.Threading; public abstract class DbDataSourceEnumerator { // V1.2.3300 protected DbDataSourceEnumerator() { // V1.2.3300 } abstract public DataTable GetDataSources(); // V1.2.3300 /* virtual public IAsyncResult BeginGetDataSources(AsyncCallback callback, object asyncStateObject) { // V1.2.3300 DbEnumSynchronousAsyncResult asyncResult = new DbEnumSynchronousAsyncResult(callback, asyncStateObject); try { asyncResult._dataTable = GetElements(); asyncResult.SetCompletedSynchronously(); } catch(DataAdapterException e) { ADP.TraceExceptionForCapture(e); asyncResult.ExceptionObject = e; } if (null == asyncResult._dataTable) { throw ADP.DataAdapter("no datatable"); } if (null != callback) { callback(asyncResult); } return asyncResult; } virtual public DataTable EndGetDataSources(IAsyncResult asyncResult) { // V1.2.3300 ADP.CheckArgumentNull(asyncResult, "asyncResult"); DbEnumSynchronousAsyncResult ar = (asyncResult as DbEnumSynchronousAsyncResult); if (ar._endXxxCalled) { throw ADP.InvalidOperation("EndGetElements called twice"); } ar._endXxxCalled = true; if (null != ar.ExceptionObject) { throw ar.ExceptionObject; } return ar._dataTable; } sealed private class DbEnumSynchronousAsyncResult : DbAsyncResult { internal bool _endXxxCalled; internal DataTable _dataTable; internal DbEnumSynchronousAsyncResult(AsyncCallback callback, Object asyncStateObject) : base(null, callback, asyncStateObject) { } } */ } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Diagnostics; using System.Threading; public abstract class DbDataSourceEnumerator { // V1.2.3300 protected DbDataSourceEnumerator() { // V1.2.3300 } abstract public DataTable GetDataSources(); // V1.2.3300 /* virtual public IAsyncResult BeginGetDataSources(AsyncCallback callback, object asyncStateObject) { // V1.2.3300 DbEnumSynchronousAsyncResult asyncResult = new DbEnumSynchronousAsyncResult(callback, asyncStateObject); try { asyncResult._dataTable = GetElements(); asyncResult.SetCompletedSynchronously(); } catch(DataAdapterException e) { ADP.TraceExceptionForCapture(e); asyncResult.ExceptionObject = e; } if (null == asyncResult._dataTable) { throw ADP.DataAdapter("no datatable"); } if (null != callback) { callback(asyncResult); } return asyncResult; } virtual public DataTable EndGetDataSources(IAsyncResult asyncResult) { // V1.2.3300 ADP.CheckArgumentNull(asyncResult, "asyncResult"); DbEnumSynchronousAsyncResult ar = (asyncResult as DbEnumSynchronousAsyncResult); if (ar._endXxxCalled) { throw ADP.InvalidOperation("EndGetElements called twice"); } ar._endXxxCalled = true; if (null != ar.ExceptionObject) { throw ar.ExceptionObject; } return ar._dataTable; } sealed private class DbEnumSynchronousAsyncResult : DbAsyncResult { internal bool _endXxxCalled; internal DataTable _dataTable; internal DbEnumSynchronousAsyncResult(AsyncCallback callback, Object asyncStateObject) : base(null, callback, asyncStateObject) { } } */ } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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