TimeoutConverter.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 / TimeoutConverter.cs / 1305376 / TimeoutConverter.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;
 
    ///  
    /// 
    ///      TimeoutConverter is a class that can be used to convert 
    ///      Timeout from one data type to another.  Access this
    ///      class through the TypeDescriptor.
    /// 
    internal class TimeoutConverter : 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 TimeSpan.FromSeconds((double)uint.MaxValue); 
                else {
                    double totalSeconds = Convert.ToDouble(text, culture);
                    if (totalSeconds > (double)uint.MaxValue)
                        totalSeconds = (double)uint.MaxValue; 

                    return TimeSpan.FromSeconds(totalSeconds); 
                } 
            }
 
            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) { 
                    double totalSeconds = ((TimeSpan)value).TotalSeconds;
                    if (totalSeconds >= uint.MaxValue)
                        return Res.GetString(Res.InfiniteValue);
                    else 
                        return((uint)totalSeconds).ToString(culture);
                } 
            } 

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

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

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