I have just upgraded from V8.x (3.5) to V9.1 (3.5) and am now getting javascript errors when trying to ad a new ow to the webgrid. The errors are occuring on a webCombo that is the editor control for one of the cells in the grid. Does anyone have any ideas or pointers to resolve this?

The error is "Object Required" and is occuring in the following generated code :

this._getContainer=function()
    {
        if (this.container==null || this.container.parentElement==null)
        {
            this.container = document.getElementById(this.ClientUniqueId + "_container");
           
            this._orignalContainerParent = this.container.parentNode;
        }
        return this.container;
    }