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//------------------------------------------------------------------------------
// <copyright file="PrimaryKeyTypeConverter.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
// <owner current="true" primary="false">Microsoft</owner>
// <owner current="false" primary="false">Microsoft</owner>
//------------------------------------------------------------------------------
namespace System.Data {
using System.ComponentModel;
using System.Globalization;
using System.Data;
internal sealed class PrimaryKeyTypeConverter : ReferenceConverter {
// converter classes should have public ctor
public PrimaryKeyTypeConverter() :
base(typeof(DataColumn[])) {
}
public override bool GetPropertiesSupported(ITypeDescriptorContext context) {
return false;
}
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) {
if (destinationType == typeof(String)) {
return true;
}
return base.CanConvertTo(context, destinationType);
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
if (destinationType == null) {
throw new ArgumentNullException("destinationType");
}
if (destinationType == typeof(string)) {
return (new DataColumn[] {}).GetType().Name;
}
return base.ConvertTo(context, culture, value, destinationType);
}
}
}
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