You receive an error message like "Stop running the script" or "A script is causing IE to run slowly" when you expand a node which loads its child nodes on demand. A timeout error could occur as well.
You can use one of the solutions below:
- Disable debugging in your web.config file. Note that this is the recommended setting for a production environment.
Or, use the second approach described below.
- Set the ScriptMode property of ScriptManager / RadScriiptManager to "Release":
<asp:ScriptManager ID="ScriptManager1" runat="server" ScriptMode="release"> </asp:ScriptManager>
<telerik:RadScriptManager ID="RadScriptManager1" ScriptMode="Release" runat="server"> </telerik:RadScriptManager>