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//
// System.ComponentModel.ArrayConverter
//
// Authors:
// Martin Willemoes Hansen (mwh@sysrq.dk)
// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
//
// (C) 2003 Martin Willemoes Hansen
// (C) 2003 Andreas Nahr
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Globalization;
namespace System.ComponentModel
{
public class ArrayConverter : CollectionConverter
{
public override object ConvertTo (ITypeDescriptorContext context, CultureInfo culture, object value,
Type destinationType)
{
if (destinationType == null)
throw new ArgumentNullException ("destinationType");
if (destinationType == typeof (string) && (value is Array))
return value.GetType ().Name + " Array";
return base.ConvertTo (context, culture, value, destinationType);
}
public override PropertyDescriptorCollection GetProperties (ITypeDescriptorContext context,
object value, Attribute[] attributes)
{
if (value == null)
throw new NullReferenceException ();
PropertyDescriptorCollection col = new PropertyDescriptorCollection (null);
if (value is Array) {
Array array = (Array)value;
for (int i = 0; i < array.Length; i ++) {
col.Add (new ArrayPropertyDescriptor (i, array.GetType()));
}
}
return col;
}
public override bool GetPropertiesSupported (ITypeDescriptorContext context)
{
return true;
}
internal class ArrayPropertyDescriptor : PropertyDescriptor
{
int index;
Type array_type;
public ArrayPropertyDescriptor (int index, Type array_type)
: base (String.Format ("[{0}]", index), null)
{
this.index = index;
this.array_type = array_type;
}
public override Type ComponentType {
get { return array_type; }
}
public override Type PropertyType {
get { return array_type.GetElementType(); }
}
public override bool IsReadOnly {
get { return false; }
}
public override object GetValue (object component)
{
if (component == null)
return null;
return ((Array)component).GetValue (index);
}
public override void SetValue (object component, object value)
{
if (component == null)
return;
((Array)component).SetValue (value, index);
}
public override void ResetValue (object component)
{
}
public override bool CanResetValue (object component)
{
return false;
}
public override bool ShouldSerializeValue (object component)
{
return false;
}
}
}
}
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