InfoPath Dev

Hello. I have MOSS 2007 and Infopath 2007.
My form template published as content type to sharepoint library.
It contains this code:

public void FormEvents_Loading(object sender, LoadingEventArgs e)
{
NamespaceManager.AddNamespace("xsf", "http://schemas.microsoft.com/office/infopath/2003/solutionDefinition");
this.Template.Manifest.CreateNavigator().SelectSingleNode("xsf:submit/xsf:davAdapter[@name='MainSubmit']/xsf:folderURL/@value", NamespaceManager).SetValue(Url);
}

When I load my form from library I get exception:
Operation is not valid due to the current state of the object.
Have you any ideas ???

Hi Alexander,
Who calls this function? How about moving it to the OnLoad event handler? Sounds like it's called earlier than it should be called.

Hi, Patrick !
I have browser-enabled form and all that I have is just FormEvents_Loading event, wich occurs when form has loaded ...
And one more thing:
this.Template.Manifest.CanEdit return for me "false"...