51 lines
1.8 KiB
C#
51 lines
1.8 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="StringConverter.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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/*
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*/
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namespace System.ComponentModel {
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using System.Diagnostics;
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using System.Globalization;
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using System.Runtime.InteropServices;
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using System.Runtime.Remoting;
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using System.Runtime.Serialization.Formatters;
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using System.Security.Permissions;
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/// <devdoc>
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/// <para>Provides a type converter to convert string objects to and from various other
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/// representations.</para>
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/// </devdoc>
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[HostProtection(SharedState = true)]
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public class StringConverter : TypeConverter {
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/// <devdoc>
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/// <para>Gets a value indicating whether this converter can convert an object in the
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/// given source type to a string using the specified context.</para>
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/// </devdoc>
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public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) {
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if (sourceType == typeof(string)) {
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return true;
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}
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return base.CanConvertFrom(context, sourceType);
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}
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/// <devdoc>
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/// <para>Converts the specified value object to a string object.</para>
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/// </devdoc>
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public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) {
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if (value is string) {
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return (string)value;
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}
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if (value == null) {
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return "";
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}
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return base.ConvertFrom(context, culture, value);
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}
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}
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}
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