diff options
Diffstat (limited to 'mcs/class/Managed.Windows.Forms/System.Windows.Forms/PropertyManager.cs')
-rw-r--r-- | mcs/class/Managed.Windows.Forms/System.Windows.Forms/PropertyManager.cs | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/PropertyManager.cs b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/PropertyManager.cs new file mode 100644 index 00000000000..ea27ef69a07 --- /dev/null +++ b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/PropertyManager.cs @@ -0,0 +1,141 @@ +// 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); + } + } +} + |