dhtmlxgrid - insert column

I am trying to put check box against each row in my grid.

I have included dhtmlxgrid_mcol.js



And I am using:

grid.insertColumn(0,“Delete”,“ch”,50);



But no check box is appearing.

Please help me out in the same.

Try to use following code:
grid.insertColumn(0,“Delete”,“ch[0]”,50);

I am trying to do the exact same thing as above, but it does not work for me either.
I even tried the statement grid.insertColumn(0,“Delete”,“ch[0]”,50); , but it doesn’t render the column correctly at all, no text is shown in the header.

any thoughts?
thx

any thoughts on this problem? I need to insert a checkbox column into a grid after it renders. this seems to be something that should work based on what i see above

Following code works at local example:

mygrid.insertColumn(0,“Column Label”,“ch”,50);

I tried insertColumn(0,‘Bulk’,‘ch’,50);
It inserts the colum, but there is nothing in it.
The grid is built as follows:

browsedailygrid.attachEvent("onRowSelect", doOnRowSelected);
  browsedailygrid.attachEvent("onXLE", doOnGridLoaded); 
browsedailygrid.loadXML("grid_connector.php");

dp = new dataProcessor("grid_connector.php");
dp.init(browsedailygrid);

then inside doOnGridLoaded. I have the call to insertColumn(0). All the other column types I have tried work fine.

What version of dhtmlxGrid are u using?

dhtmlxSuite 2011 Rel.1 (DHTMLX 3.0) Professional edition build 110713

i found my problem finally.
I had not set the image path
setImagePath(“codebase/imgs/”);

checkboxes will not display without this. This would be a great addition to the documentation.