Get the indexes of selected rows in GridView

Question

I want get the rows I selected from gridview use a checkbox. The checkbox is like this!

Answer 1

try this:

protected void CheckBox1_CheckedChanged(object sender, System.EventArgs e)
{
    CheckBox checkbox = (CheckBox)sender;
    GridViewRow row = (GridViewRow)checkbox.NamingContainer;
    if (checkbox.Checked == true) {
        row.BackColor = System.Drawing.Color.Red;
        mygridview.Columns(0).Visible = false;
    }
}

Answer 2

You can loop through the GridView rows and use FindControl to retrieve the Checkbox and then get the IsChecked property on them.

foreach (GridViewRow row in grid.Rows)
{
  CheckBox check = (CheckBox)row.FindControl("CheckboxID");

  if (CheckBox1.Checked)
  {
   ...
  } 
}