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