How to hide a column (GridView) but still access its value?

Question

I have a GridView with a DataSource (SQL Database). I want to hide a column, but still be able to access the value when I select the record. Can someone show me

Answer 1

I have a new solution hide the column on client side using css or javascript or jquery.

.col0
{
  display: none;
}

And in the aspx file where you add the column you should specify the CSS properties: