How to get the data from the datagrid which is in modal popup extender

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C#

Hi All,

I have a modal pop up extender on my page. On the click of link button modal popup will appear. In the modal pop up,I have used datagrid. Datagrid contains 3 columns. One for checkbox, Other for rows from database and 3rd for dropdownlist.

Once modal popup appears, it will allow user to select some rows by checking the checkbox and dropdown allows the user to select the sequence of the rows.

I have one save button in modal pop up, so once user clicks save, I will be fetching the data from the database for respective rows.

So my question here is, once user clicks save, how to access those values from the datagrid.

Thanks,
Surendra