Hello baileyjames,

I'm glad you solved this issue. Thank you for sharing your code with the community.

If you have any other questions, please feel free to contact me.

Thanks so much for doing this Nikolay. Great sample. I identified the difference between your's and mine, thanks to you posting this.

#1 I have these 2 items set            <ig:Activation Enabled="True" /> <ig:EditingCore  BatchUpdating="True">

#2 I am using an input button so the page does NOT post back (too expensive to post, that is why I'm in batch mode). Try changing your button to this:        

<input id="New" type="button" name="New" onclick="addRow();" style="margin-left: 10px; margin-top: 5px;" value="New" class="Button" />

...and the template column's button will not show up after you click on new. I'm thinking this is a bug or something that only renders on post. Bummer if so. Anyhow. I have a  work-around a colleague found (below). It injects html into the cell's html element. Very clever.  

        function addRow() {

            var grid = $find("dgOther");

            // Create array of cell values for all values that cannot be null.

            var uniqueid = (new Date()).getTime().toString().substring(7, 14); --filler pk for the grid that is unique. 

            var row = new Array("", uniqueid, "", "1/1/1900", "", "", "", "", "", "");

            grid.get_rows().add(row);

            var selectedRows = grid.get_behaviors().get_selection().get_selectedRows();

            for (var i = selectedRows.get_length(); i >= 0; i--) {

                selectedRows.remove(selectedRows.getItem(i));

            }

            //select the row to add a button to

            var newrow = grid.get_rows().get_row(grid._rows.get_length() - 1);

            selectedRows.add(newrow);

            var ICD9ModalButtonCell = newrow.get_cell(6);  //identify the cell

            var ICD9ModalButtonParentElement = ICD9ModalButtonCell.get_element();  //Identify the cell's html element

            var onClickModalDialogICD9CellMethod = "ShowICDSearchModal('dgOther', '" + (grid._rows.get_length() - 1) + "', '6'); return false";

            ICD9ModalButtonParentElement.innerHTML = '<input type="button" value="..." onclick="' + onClickModalDialogICD9CellMethod + '"class="Button" />';  //Inject the new html/java script so the user can click on it. 

}