FontNamesConverter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebControls / FontNamesConverter.cs / 1 / FontNamesConverter.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI.WebControls { 
 
    using System.ComponentModel.Design;
    using System; 
    using System.ComponentModel;
    using System.Collections;
    using System.Globalization;
    using System.Security.Permissions; 

 
    ///  
    ///   Converts a string with font names separated by commas to and from
    ///   an array of strings containing individual names. 
    /// 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    public class FontNamesConverter : TypeConverter { 

 
        ///  
        ///   Determines if the specified data type can be converted to an array of strings
        ///   containing individual font names. 
        /// 
        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) {
            if (sourceType == typeof(string)) {
                return true; 
            }
            return false; 
        } 

 
        /// 
        ///   Parses a string that represents a list of font names separated by
        ///   commas into an array of strings containing individual font names.
        ///  
        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);
        } 


        /// 
        ///   Creates a string that represents a list of font names separated 
        ///   by commas from an array of strings containing individual font names.
        ///  
        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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