Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / CompMod / System / ComponentModel / CharConverter.cs / 1 / CharConverter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.ComponentModel { using Microsoft.Win32; using System.ComponentModel; using System.Diagnostics; using System.Globalization; using System.Runtime.Serialization.Formatters; using System.Runtime.Remoting; using System.Runtime.InteropServices; using System.Security.Permissions; ////// [HostProtection(SharedState = true)] public class CharConverter : TypeConverter { ///Provides /// a type converter to convert Unicode /// character objects to and from various other representations. ////// public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { if (sourceType == typeof(string)) { return true; } return base.CanConvertFrom(context, sourceType); } ///Gets a value indicating whether this converter can /// convert an object in the given source type to a Unicode character object using /// the specified context. ////// Converts the given object to another type. /// public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == typeof(string) && value is char) { if ((char)value == (char)0) { return ""; } } return base.ConvertTo(context, culture, value, destinationType); } ////// public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (value is string) { string text = (string)value; if (text.Length > 1) { text = text.Trim(); } if (text != null && text.Length > 0) { if (text.Length != 1) { throw new FormatException(SR.GetString(SR.ConvertInvalidPrimitive, text, "Char")); } return text[0]; } return '\0'; } return base.ConvertFrom(context, culture, value); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //Converts the given object to a Unicode character object. ///// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.ComponentModel { using Microsoft.Win32; using System.ComponentModel; using System.Diagnostics; using System.Globalization; using System.Runtime.Serialization.Formatters; using System.Runtime.Remoting; using System.Runtime.InteropServices; using System.Security.Permissions; ////// [HostProtection(SharedState = true)] public class CharConverter : TypeConverter { ///Provides /// a type converter to convert Unicode /// character objects to and from various other representations. ////// public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { if (sourceType == typeof(string)) { return true; } return base.CanConvertFrom(context, sourceType); } ///Gets a value indicating whether this converter can /// convert an object in the given source type to a Unicode character object using /// the specified context. ////// Converts the given object to another type. /// public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == typeof(string) && value is char) { if ((char)value == (char)0) { return ""; } } return base.ConvertTo(context, culture, value, destinationType); } ////// public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (value is string) { string text = (string)value; if (text.Length > 1) { text = text.Trim(); } if (text != null && text.Length > 0) { if (text.Length != 1) { throw new FormatException(SR.GetString(SR.ConvertInvalidPrimitive, text, "Char")); } return text[0]; } return '\0'; } return base.ConvertFrom(context, culture, value); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.Converts the given object to a Unicode character object. ///
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