hi everyone
i have problem with dropdowntree
in my local site whene i have some postback in my site and change some views of multiview this error appears :
the control collection cannot be modified during databind init load prerender or unload phases
and this is my stack trace:
any one know any thing about this error??
i have no mention of this control in my code view (code behind)
i have problem with dropdowntree
in my local site whene i have some postback in my site and change some views of multiview this error appears :
the control collection cannot be modified during databind init load prerender or unload phases
and this is my stack trace:
[HttpException (0x80004005): The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.]
System.Web.UI.ControlCollection.Add(Control child) +9600379
Telerik.Web.UI.RadDropDownTree.CreateHeader() +135
Telerik.Web.UI.RadDropDownTree.CreateChildControls() +57
System.Web.UI.Control.EnsureChildControls() +83
System.Web.UI.Control.FindControl(String id, Int32 pathOffset) +27
System.Web.UI.Control.FindControl(String id) +12
Telerik.Web.UI.HierarchicalControlItemContainer.FindDataSourceControl() +124
Telerik.Web.UI.HierarchicalControlItemContainer.GetDataSource() +107
System.Web.UI.WebControls.DataBoundControl.ConnectToDataSourceView() +58
System.Web.UI.WebControls.DataBoundControl.OnLoad(EventArgs e) +19
System.Web.UI.Control.LoadRecursive() +54
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Control.LoadRecursive() +145
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772
any one know any thing about this error??
i have no mention of this control in my code view (code behind)