96 lines
3.2 KiB
C#
96 lines
3.2 KiB
C#
//
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// System.ComponentModel.TimeSpanConverter
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//
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// Authors:
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// Martin Willemoes Hansen (mwh@sysrq.dk)
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// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
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//
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// (C) 2003 Martin Willemoes Hansen
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// (C) 2003 Andreas Nahr
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Globalization;
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using System.Reflection;
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using System.ComponentModel.Design.Serialization;
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namespace System.ComponentModel
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{
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public class TimeSpanConverter : TypeConverter
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{
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public TimeSpanConverter()
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{
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}
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public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType)
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{
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if (sourceType == typeof (string))
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return true;
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return base.CanConvertFrom (context, sourceType);
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}
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public override bool CanConvertTo (ITypeDescriptorContext context, Type destinationType)
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{
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if (destinationType == typeof (string))
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return true;
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if (destinationType == typeof (InstanceDescriptor))
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return true;
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return base.CanConvertTo (context, destinationType);
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}
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public override object ConvertFrom (ITypeDescriptorContext context, CultureInfo culture, object value)
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{
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if (value.GetType() == typeof (string)) {
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string TimeSpanString = (string) value;
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try {
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// LAMESPEC Doc says TimeSpan uses Ticks, but MS uses time format:
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// [ws][-][d.]hh:mm:ss[.ff][ws]
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return TimeSpan.Parse (TimeSpanString);
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} catch {
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throw new FormatException (TimeSpanString + "is not valid for a TimeSpan.");
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}
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}
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return base.ConvertFrom (context, culture, value);
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}
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public override object ConvertTo (ITypeDescriptorContext context, CultureInfo culture, object value,
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Type destinationType)
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{
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if (value is TimeSpan) {
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TimeSpan timespan = (TimeSpan) value;
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if (destinationType == typeof (string) && value != null) {
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// LAMESPEC Doc says TimeSpan uses Ticks, but MS uses time format
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// [ws][-][d.]hh:mm:ss[.ff][ws]
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return timespan.ToString ();
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}
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if (destinationType == typeof (InstanceDescriptor)) {
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ConstructorInfo ctor = typeof(TimeSpan).GetConstructor (new Type[] {typeof(long)});
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return new InstanceDescriptor (ctor, new object[] { timespan.Ticks });
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}
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}
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return base.ConvertTo (context, culture, value, destinationType);
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}
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}
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}
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