grid.deleteRow throws exception

Hi,
I am using a dhtmlxGrid. I am required to add and delete rows.
For add , i have used grid.addRow(), as per the doc. This works fine.
However,
grid.deleteRow(rowId), throws an exception, at this place.

if (this._srnd){for (var i = 0;i < this._fillers.length;i++)
stating ‘this._fillers.length’ is null or is not an object.
Please help.

Thanks.

Check if row which you wish to delete is really exists in the grid.

It exists. I checked .
What is contained in this._fillers ? When and where is it initialised ? Maybe that should give us some clue.

Can you provide example of your grid initialization? Do you use dynamic or static smart rendering mode? When do you call deleteRow() method?

Empty grid is initialised in javascript.
The first and the second colTypes, are custom defined button types.
The second, button is the delete button, which deletes the row.

If issue still occurs for you - please provide any kind of sample or demo link where it can be reconstructed.

deleteRow must work correctly , as far as you providing existing, unique ID as its parameter