private void ParentContainerInvalid()
{
// MessageBox.Show("ParentContainerInvalid call");
if (null != _parentContainer && _ds == _parentContainer.DeviceSpecific)
{
_parentContainer.DeviceSpecific = null;
// container's enabled deviceSpecific control is deleted.
// another disabled deviceSpecific child may need to be enabled.
foreach (System.Web.UI.Control control in _parentContainer.Controls)
{
if (control is DeviceSpecific && control != _ds)
{
// found a valid candidate
DeviceSpecific newDS = (DeviceSpecific)control;
if (newDS.Site != null)
{
IDesignerHost host = (IDesignerHost)newDS.Site.GetService(typeof(IDesignerHost));
Debug.Assert(host != null, "host is null in DeviceSpecificDesigner");
IDesigner designer = host.GetDesigner((IComponent)newDS);
// this designer could be null if the page is disposing the controls (Page.Dispose).
if (designer != null)
{
_parentContainer.DeviceSpecific = newDS;
DeviceSpecificDesigner dsd = (DeviceSpecificDesigner)designer;
dsd.TreatAsDuplicate(false);
break;
}
}
}
}
}
}
public override void OnSetParent()
{
// MessageBox.Show("OnSetParent call for _ds.Site.Name=" + _ds.Site.Name + ", _ds.ID=" + _ds.ID);
base.OnSetParent();
Debug.Assert(_ds.Parent != null, "_ds.Parent is null");
if (null != _parentContainer)
{
ParentContainerInvalid();
}
System.Web.UI.Control parentContainer = _ds.Parent;
if (parentContainer is System.Web.UI.MobileControls.Panel)
{
_parentContainer = (System.Web.UI.MobileControls.Panel)parentContainer;
_ds.SetOwner(_parentContainer);
if (null != _parentContainer.DeviceSpecific &&
0 != String.Compare(_ds.ID, _parentContainer.DeviceSpecific.ID, StringComparison.OrdinalIgnoreCase))
{
// the parent container already has a deviceSpecific child.
// this instance is a duplicate and needs to update its rendering.
// MessageBox.Show("OnSetParent - this instance is a duplicate");
TreatAsDuplicate(true);
// the current valid DeviceSpecific is intentionaly refreshed because
// if this deviceSpecific instance is recreated via a Undo operation
// the current valid DeviceSpecific appears as a duplicate if not refreshed.
IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));
Debug.Assert(host != null, "Did not get a valid IDesignerHost reference");
IDesigner designer = host.GetDesigner((IComponent)_parentContainer.DeviceSpecific);
Debug.Assert(designer != null, "designer is null in DeviceSpecificDesigner");
DeviceSpecificDesigner dsd = (DeviceSpecificDesigner)designer;
dsd.UpdateRendering();
}
else
{
// MessageBox.Show("OnSetParent - this instance becomes the valid ds");
_parentContainer.DeviceSpecific = _ds;
if (_isDuplicate)
{
TreatAsDuplicate(false);
}
}
}
else
{
_parentContainer = null;
}
// Invalidate the type descriptor so that the PropertyOverrides
// property browsable status gets updated
TypeDescriptor.Refresh(Component);
}