Question

I have 4 datagridviews.
based on user’s selection I’ll bring on of them to front.
I have a button that use top datagridview for calculating something.
How can I recognize which datagridview is on top?

Answer 1

Use .Visible = true; or .Visible = false; Property to either hide or show your current grid, thus you can identify which one is on top by checking the .Visible

foreach(Control c in this.Controls)
{
  if (c is DataGridView && c.Visible)
  {
    //Do your logic here
  }
}