SubclassTypeValidator.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 / Configuration / System / Configuration / SubclassTypeValidator.cs / 1305376 / SubclassTypeValidator.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Collections; 
using System.IO;
using System.Reflection; 
using System.Security.Permissions;
using System.Xml;
using System.Collections.Specialized;
using System.Globalization; 
using System.ComponentModel;
using System.Security; 
using System.Text; 
using System.Text.RegularExpressions;
 
namespace System.Configuration {

    // This class validates that the value is a subclass of a specified type
    public sealed class SubclassTypeValidator : ConfigurationValidatorBase { 
        private Type _base;
 
        public SubclassTypeValidator(Type baseClass) { 
            if (baseClass == null) {
                throw new ArgumentNullException("baseClass"); 
            }

            _base = baseClass;
        } 

        public override bool CanValidate(Type type) { 
            return (type == typeof(Type)); 
        }
 
        public override void Validate(object value) {
            if (value == null) {
                return;
            } 

            // Make a check here since value.GetType() returns RuntimeType rather then Type 
            if (!(value is Type)) { 
                ValidatorUtils.HelperParamValidation(value, typeof(Type));
            } 

            if (!_base.IsAssignableFrom((Type)value)) {
                throw new ArgumentException(SR.GetString(SR.Subclass_validator_error, ((Type)value).FullName, _base.FullName));
            } 
        }
    } 
} 

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

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