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//
// System.Web.UI.HierarchicalDataSourceControl
//
// Authors:
// Ben Maurer (bmaurer@users.sourceforge.net)
// Lluis Sanchez Gual (lluis@novell.com)
//
// (C) 2003 Ben Maurer
// (C) 2005-2010 Novell, Inc (http://www.novell.com)
//
//
// 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.Collections;
using System.Collections.Specialized;
using System.Text;
using System.ComponentModel;
namespace System.Web.UI
{
[NonVisualControlAttribute]
[DesignerAttribute ("System.Web.UI.Design.HierarchicalDataSourceDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
[ControlBuilderAttribute (typeof(DataSourceControlBuilder))]
[BindableAttribute (false)]
public abstract class HierarchicalDataSourceControl : Control, IHierarchicalDataSource
{
static object dataSourceChanged = new object ();
protected HierarchicalDataSourceControl()
{
}
protected abstract HierarchicalDataSourceView GetHierarchicalView (string viewPath);
HierarchicalDataSourceView IHierarchicalDataSource.GetHierarchicalView (string viewPath)
{
return GetHierarchicalView (viewPath);
}
[Browsable (false)]
[DefaultValue (false)]
[EditorBrowsable (EditorBrowsableState.Never)]
public override bool EnableTheming {
get { return false; }
set { throw new NotSupportedException (); }
}
[Browsable (false)]
[DefaultValue ("")]
[EditorBrowsable (EditorBrowsableState.Never)]
public override string SkinID {
get { return string.Empty; }
set { throw new NotSupportedException (); }
}
[Browsable (false)]
[DefaultValue (false)]
[EditorBrowsable (EditorBrowsableState.Never)]
public override bool Visible {
get { return false; }
set { throw new NotSupportedException (); }
}
protected override ControlCollection CreateControlCollection ()
{
return new EmptyControlCollection (this);
}
[EditorBrowsable (EditorBrowsableState.Never)]
public override Control FindControl (string id)
{
if (id == ID) return this;
else return null;
}
[EditorBrowsable (EditorBrowsableState.Never)]
public override bool HasControls ()
{
return false;
}
[EditorBrowsable (EditorBrowsableState.Never)]
public override void Focus ()
{
throw new NotSupportedException ();
}
event EventHandler System.Web.UI.IHierarchicalDataSource.DataSourceChanged {
add { Events.AddHandler (dataSourceChanged, value); }
remove { Events.RemoveHandler (dataSourceChanged, value); }
}
protected virtual void OnDataSourceChanged (EventArgs e)
{
EventHandler eh = Events [dataSourceChanged] as EventHandler;
if (eh != null)
eh (this, e);
}
[EditorBrowsable (EditorBrowsableState.Never)]
public override void RenderControl (HtmlTextWriter writer)
{
// nop
}
}
}
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