We have a RadMenuItem in my SL application, i am trying to remove an item from the RadMenuItem but i get this exception -
{System.Exception: Error HRESULT E_FAIL has been returned from a call to a COM component.
at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
at MS.Internal.XcpImports.Collection_RemoveAt[T](PresentationFrameworkCollection`1 collection, UInt32 index)
at System.Windows.PresentationFrameworkCollection`1.RemoveAtImpl(Int32 index)
at System.Windows.Controls.ItemCollection.RemoveAtImpl(Int32 index)
at System.Windows.PresentationFrameworkCollection`1.RemoveAt(Int32 index)
at Telerik.Windows.Controls.CollectionExtensions.RemoveAll[T](IList`1 collection)
at NEMS.MainPage.Instance_GetTemplateMenuCompleted(Object sender, EventArgs`1 e)}
As I am trying to remove all the submenus from existing RadMenuItem named - "template"
When code reaches on the line -
{System.Exception: Error HRESULT E_FAIL has been returned from a call to a COM component.
at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
at MS.Internal.XcpImports.Collection_RemoveAt[T](PresentationFrameworkCollection`1 collection, UInt32 index)
at System.Windows.PresentationFrameworkCollection`1.RemoveAtImpl(Int32 index)
at System.Windows.Controls.ItemCollection.RemoveAtImpl(Int32 index)
at System.Windows.PresentationFrameworkCollection`1.RemoveAt(Int32 index)
at Telerik.Windows.Controls.CollectionExtensions.RemoveAll[T](IList`1 collection)
at NEMS.MainPage.Instance_GetTemplateMenuCompleted(Object sender, EventArgs`1 e)}
As I am trying to remove all the submenus from existing RadMenuItem named - "template"
When code reaches on the line -
objRadMenuMainMenuMRUConnections.Items.RemoveAll();
, exception occurs.Telerik.Windows.Controls.RadMenuItem objRadMenuMainMenuMRUConnections = (Telerik.Windows.Controls.RadMenuItem)
this
.FindName(
"template"
);
var distinctType = e.Value.Select(i => i.type_mid).Distinct();
objRadMenuMainMenuMRUConnections.Items.RemoveAll();
for
(
int
intConn = 0; intConn < distinctType.Count(); intConn++)
{
var typename1 = from n
in
e.Value where n.type_mid == distinctType.ElementAt(intConn) select n;
RadMenuItem objConnPart =
new
RadMenuItem();
objConnPart.Header = typename1.ElementAt(0).type_name.ToString();
objConnPart.Name =
"typeNameMenu"
+ objConnPart.Header;
objRadMenuMainMenuMRUConnections.Items.Insert(objRadMenuMainMenuMRUConnections.Items.Count, objConnPart);
RadMenuItem objMainMenu = (RadMenuItem)objConnPart;
for
(
int
submenu = 0; submenu < typename1.Count(); submenu++)
{
RadMenuItem objSubMenu =
new
RadMenuItem();
objSubMenu.Header = typename1.ElementAt(submenu).template_name.ToString();
objSubMenu.Name = typename1.ElementAt(submenu).template_pid.ToString();
objSubMenu.Click +=
new
RadRoutedEventHandler(objSubMenu_Click);
objMainMenu.Items.Insert(objMainMenu.Items.Count, objSubMenu);
}
}