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//------------------------------------------------------------------------------
// <copyright file="FontNamesConverter.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System.ComponentModel.Design;
using System;
using System.ComponentModel;
using System.Collections;
using System.Globalization;
/// <devdoc>
/// Converts a string with font names separated by commas to and from
/// an array of strings containing individual names.
/// </devdoc>
public class FontNamesConverter : TypeConverter {
/// <devdoc>
/// Determines if the specified data type can be converted to an array of strings
/// containing individual font names.
/// </devdoc>
public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) {
if (sourceType == typeof(string)) {
return true;
}
return false;
}
/// <devdoc>
/// Parses a string that represents a list of font names separated by
/// commas into an array of strings containing individual font names.
/// </devdoc>
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) {
if (value is string) {
if (((string)value).Length == 0) {
return new string[0];
}
string[] names = ((string)value).Split(new char[] { culture.TextInfo.ListSeparator[0] });
for (int i = 0; i < names.Length; i++) {
names[i] = names[i].Trim();
}
return names;
}
throw GetConvertFromException(value);
}
/// <devdoc>
/// Creates a string that represents a list of font names separated
/// by commas from an array of strings containing individual font names.
/// </devdoc>
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
if (destinationType == typeof(string)) {
if (value == null) {
return String.Empty;
}
return string.Join(culture.TextInfo.ListSeparator, ((string[])value));
}
throw GetConvertToException(value, destinationType);
}
}
}
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