insertText into a CKEditor through Code Behind - asp.net

Question

I am trying to get CKEditor.NET to insert some text into my CKEditor when the page loads.
Private Sub CKEditor_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles myCKEditor.Load
Dim insertScript As String
insertScript = "<script type=""text/javascript"">window.CKEDITOR.instances.myWidget_myCKEditor.insertText(""test"");</script>"
Dim cManager As ClientScriptManager = Parent.Page.ClientScript
cManager.RegisterStartupScript(Me.GetType, "insertText", insertScript)
End Sub
My page is organized as follows:
myPage (aspx)
myWidget (ascx)
myCKEditor (from an assembly)
I am getting the following error:
TypeError: Cannot read property 'instances' of undefined
It appears that CKEDITOR is not around when this is called. If I open up the JS console and run the insertScript it works as desired.
I have tried attaching this routine to MyBase.Load and Me.Load as well to no avail, and even tried using window.Load = insertScript, all of which produce the same error.
I noticed that no matter what I do, the last thing in the source is the script that initializes CKEditor, ie
....
<script type="text/javascript">window.CKEDITOR.instances.myWidget_myCKEditor.insertText("test");</script>
<script type="text/javascript">
//<![CDATA[
window.CKEDITOR_BASEPATH = '/ckeditor/';
//]]>
</script>
<script src="/ckeditor/ckeditor.js?t=C6HH5UF" type="text/javascript"></script>
<script type="text/javascript">
//<![CDATA[
var CKEditor_Controls=[],CKEditor_Init=[];function CKEditor_TextBoxEncode(d,e){var f;if(typeof CKEDITOR=='undefined'||typeof CKEDITOR.instances[d]=='undefined'){f=document.getElementById(d);if(f)f.value=f.value.replace(/</g,'<').replace(/>/g,'>');}else{var g=CKEDITOR.instances[d];if(e&&(typeof Page_BlockSubmit=='undefined'||!Page_BlockSubmit)){g.destroy();f=document.getElementById(d);if(f)f.style.visibility='hidden';}else g.updateElement();}};(function(){if(typeof CKEDITOR!='undefined'){var d=document.getElementById('myWidget_myCKEditor');if(d)d.style.visibility='hidden';}var e=function(){var f=CKEditor_Controls,g=CKEditor_Init,h=window.pageLoad,i=function(){for(var j=f.length;j--;){var k=document.getElementById(f[j]);if(k&&k.value&&(k.value.indexOf('<')==-1||k.value.indexOf('>')==-1))k.value=k.value.replace(/</g,'<').replace(/>/g,'>').replace(/&/g,'&');}if(typeof CKEDITOR!='undefined')for(var j=0;j<g.length;j++)g[j].call(this);};window.pageLoad=function(j,k){if(k.get_isPartialLoad())setTimeout(i,0);if(h&&typeof h=='function')h.call(this,j,k);};if(typeof Page_ClientValidate=='function'&&typeof CKEDITOR!='undefined')Page_ClientValidate=CKEDITOR.tools.override(Page_ClientValidate,function(j){return function(){for(var k in CKEDITOR.instances){if(document.getElementById(k))CKEDITOR.instances[k].updateElement();}return j.apply(this,arguments);};});setTimeout(i,0);};if(typeof Sys!='undefined'&&typeof Sys.Application!='undefined')Sys.Application.add_load(e);if(window.addEventListener)window.addEventListener('load',e,false);else if(window.attachEvent)window.attachEvent('onload',e);})();CKEditor_Controls.push('myWidget_myCKEditor');
CKEditor_Init.push(function(){if(typeof CKEDITOR.instances['myWidget_myCKEditor']!='undefined' || !document.getElementById('myWidget_myCKEditor')) return;CKEDITOR.replace('myWidget_myCKEditor',{"htmlEncodeOutput" : true}); });
//]]>
</script>
</form>
....
All the evidence suggests that I am invoking the startup script at the wrong time, but I don't know when the "right time" to invoke it is.

Answer 1

Yoy can use jquery windows.ready function as below
insertScript = "<script type=""text/javascript""> <script language="javascript">
$(document).ready(function() {
window.CKEDITOR.instances.myWidget_myCKEditor.insertText('test');
})
})
</script> ";
Dim cManager As ClientScriptManager = Parent.Page.ClientScript
cManager.RegisterStartupScript(Me.GetType, "insertText", insertScript)
It will make sure your javascript fires only when document get ready and not b4 that.

Answer 2

Kind of a cop-out, but I ended up loading what I needed to insert on the page load and defining the script in the .ascx file.
In my myWidget.ascx:
<script type="text/javascript">
function ddChange(obj) {
window.CKEDITOR.instances.myWidget_myCKEditor.insertText(obj.value);
document.getElementById("myWidget_myCannedPicker").selectedIndex = 0;
}
</script>
...
<asp:DropDownList ID="myCannedPicker" Width="400" runat="server" AutoPostBack="false" OnChange="ddChange(this)" /></span></td>
In myWidget.ascx.vb:
Private Sub fillInitialValues()
...
myCannedPicker.DataSource = dt
myCannedPicker.DataValueField = "msg_text"
myCannedPicker.DataTextField = "msg_name"
myCannedPicker.DataBind()
myCannedPicker.Items.Insert(0, New ListItem("Please make a selection:", "0"))
End Sub
Doesn't really answer to the original question, but it was a suitable workaround in my case.