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/ 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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