SizeConverter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Services / Messaging / System / Messaging / Design / SizeConverter.cs / 1305376 / SizeConverter.cs
                        

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

namespace System.Messaging.Design { 
    using System.Messaging; 
    using System.ComponentModel;
    using System.Diagnostics; 
    using System;
    using System.ComponentModel.Design.Serialization;
    using System.Reflection;
    using System.Collections; 
    using System.Globalization;
 
    ///  
    internal class SizeConverter : TypeConverter {
 
        /// 
        /// 
        ///      Determines if this converter can convert an object in the given source
        ///      type to the native type of the converter. 
        /// 
        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { 
            if (sourceType == typeof(string)) { 
                return true;
            } 
            return base.CanConvertFrom(context, sourceType);
        }

        ///  
        /// 
        ///      Converts the given object to the converter's native type. 
        ///  
        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) {
 
            if (value is string) {

                string text = ((string)value).Trim();
 
                if (text.Length == 0 || string.Compare(text, Res.GetString(Res.InfiniteValue), true, CultureInfo.CurrentCulture) == 0)
                    return(long)uint.MaxValue; 
                else { 
                    long size = Convert.ToInt64(text, culture);
                    return size; 
                }

            }
 
            return base.ConvertFrom(context, culture, value);
        } 
 
        /// 
        ///  
        ///      Converts the given object to another type.  The most common types to convert
        ///      are to and from a string object.  The default implementation will make a call
        ///      to ToString on the object if the object is valid and if the destination
        ///      type is string.  If this cannot convert to the desitnation type, this will 
        ///      throw a NotSupportedException.
        ///  
        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { 
            if (destinationType == null) {
                throw new ArgumentNullException("destinationType"); 
            }

            if (destinationType == typeof(string)) {
                if (value != null) { 
                    if ((long)value == uint.MaxValue)
                        return Res.GetString(Res.InfiniteValue); 
                    else 
                        return value.ToString();
                } 
            }

            return base.ConvertTo(context, culture, value, destinationType);
        } 
    }
} 
 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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