Telerik RadScriptManager - error while combining js files
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21-08-2019 - |
Question
I'm trying to combine multiple js file references using Telerik's script manager. Here is the code I have on page load:
System.Web.UI.ScriptReference jsFile1 = new System.Web.UI.ScriptReference('/virtual_folder/jsfile1.js');
System.Web.UI.ScriptReference jsFile2 = new System.Web.UI.ScriptReference('/virtual_folder/jsfile2.js');
this.Master.ScriptManager.CompositeScript.Scripts.Add(jsFile1);
this.Master.ScriptManager.CompositeScript.Scripts.Add(jsFile2);
I'm getting an error:
[NullReferenceException: Object reference not set to an instance of an object.] System.Collections.ObjectModel.Collection`1.Add(T item) +18
Telerik.Web.UI.RadScriptManager.Page_PreRenderComplete(Object sender, EventArgs e) +95
System.EventHandler.Invoke(Object sender, EventArgs e) +0
System.Web.UI.Page.OnPreRenderComplete(EventArgs e) +8695102
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1029
What am I doing wrong?
Solution
I think that the script combining only works for embedded resources currently so you would have to embed your js Files inside a dll.
On a side note you know you can use
this.Master.ScriptManager.
tried using
RadScriptManager.GetCurrent(this)
I am assuming you are calling this from an aspx page and not an ascx control, otherwise you have to use this.Page.