129 lines
3.4 KiB
C#
129 lines
3.4 KiB
C#
//
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// System.ComponentModel.ArrayConverter
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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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namespace System.ComponentModel
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{
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public class ArrayConverter : CollectionConverter
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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 (destinationType == null)
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throw new ArgumentNullException ("destinationType");
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if (destinationType == typeof (string) && (value is Array))
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return value.GetType ().Name + " Array";
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return base.ConvertTo (context, culture, value, destinationType);
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}
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public override PropertyDescriptorCollection GetProperties (ITypeDescriptorContext context,
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object value, Attribute[] attributes)
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{
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if (value == null)
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throw new NullReferenceException ();
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PropertyDescriptorCollection col = new PropertyDescriptorCollection (null);
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if (value is Array) {
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Array array = (Array)value;
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for (int i = 0; i < array.Length; i ++) {
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col.Add (new ArrayPropertyDescriptor (i, array.GetType()));
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}
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}
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return col;
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}
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public override bool GetPropertiesSupported (ITypeDescriptorContext context)
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{
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return true;
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}
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internal class ArrayPropertyDescriptor : PropertyDescriptor
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{
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int index;
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Type array_type;
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public ArrayPropertyDescriptor (int index, Type array_type)
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: base (String.Format ("[{0}]", index), null)
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{
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this.index = index;
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this.array_type = array_type;
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}
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public override Type ComponentType {
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get { return array_type; }
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}
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public override Type PropertyType {
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get { return array_type.GetElementType(); }
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}
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public override bool IsReadOnly {
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get { return false; }
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}
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public override object GetValue (object component)
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{
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if (component == null)
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return null;
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return ((Array)component).GetValue (index);
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}
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public override void SetValue (object component, object value)
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{
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if (component == null)
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return;
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((Array)component).SetValue (value, index);
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}
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public override void ResetValue (object component)
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{
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}
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public override bool CanResetValue (object component)
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{
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return false;
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}
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public override bool ShouldSerializeValue (object component)
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{
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return false;
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}
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}
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}
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}
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