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// 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.
//
// Copyright (c) 2005 Novell, Inc.
//
// Authors:
// Jackson Harper jackson@ximian.com
using System;
using System.Collections;
using System.ComponentModel;
namespace System.Windows.Forms {
public class PropertyManager : BindingManagerBase {
private object data_source;
private string property_name;
private PropertyDescriptor prop_desc;
private bool binding_suspended;
public PropertyManager() {
}
internal PropertyManager (object data_source, string property_name)
{
this.data_source = data_source;
this.property_name = property_name;
prop_desc = TypeDescriptor.GetProperties (data_source).Find (property_name, true);
if (prop_desc == null)
return;
prop_desc.AddValueChanged (data_source, new EventHandler (PropertyChangedHandler));
}
public override object Current {
get { return data_source; }
}
public override int Position {
get { return 0; }
set { /* Doesn't do anything on MS" */ }
}
public override int Count {
get { return 1; }
}
public override void AddNew ()
{
throw new NotSupportedException ("AddNew is not supported for property to property binding");
}
public override void CancelCurrentEdit ()
{
IEditableObject editable = data_source as IEditableObject;
if (editable == null)
return;
editable.CancelEdit ();
PushData ();
}
public override void EndCurrentEdit ()
{
PullData ();
IEditableObject editable = data_source as IEditableObject;
if (editable == null)
return;
editable.EndEdit ();
}
public override PropertyDescriptorCollection GetItemProperties ()
{
return TypeDescriptor.GetProperties (data_source);
}
public override void RemoveAt (int idx)
{
throw new NotSupportedException ("RemoveAt is not supported for property to property binding");
}
public override void ResumeBinding ()
{
binding_suspended = false;
}
public override void SuspendBinding ()
{
binding_suspended = true;
}
internal override bool IsSuspended {
get { return binding_suspended; }
}
protected internal override string GetListName (ArrayList list)
{
return String.Empty;
}
[MonoTODO]
protected override void UpdateIsBinding ()
{
}
protected internal override void OnCurrentChanged (EventArgs e)
{
PullData ();
if (onCurrentChangedHandler != null) {
onCurrentChangedHandler (this, e);
}
}
private void PropertyChangedHandler (object sender, EventArgs e)
{
OnCurrentChanged (EventArgs.Empty);
}
}
}
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