How to hide columns in an ASP.NET GridView with auto-generated columns?

Question

GridView1.Columns.Count is always zero even SqlDataSource1.DataBind();

But Grid is ok

I can do

for (int i = 0; i < GridView1.HeaderRow.Cel         


        

Answer 1

Iterate through the GridView rows and make the cells of your target columns invisible. In this example I want to keeps columns 4-6 visible as is, so we skip those:

foreach (GridViewRow row in yourGridView.Rows)
   {
     for (int i = 0; i < rows.Cells.Count; i++)
     {
        switch (i)
        {
           case 4:
           case 5:
           case 6:
              continue;
        }
        row.Cells[i].Visible = false;
     };
   };

Then you will need to remove the column headers separately (keep in mind that removing header cells changes the length of the GridView after each removal):

grdReportRole.HeaderRow.Cells.RemoveAt(0);