How to stop validating a datagridview cell if a user tries to select a cell in previous columns of the current row C#

Question

I have a datagridview that contains 5 columns, in the code I also added datagridview1__CellValidating event as well. Currently when a user tries to modify a cell value and then leaves the cell the datagridview1__CellValidating event is triggered but I don't want datagridview1__CellValidating to be always triggered.

In my case, lets say that I am trying to modify the value of a column 3 and then I click\\select the cell in the column 2 or column 1 of the current row. In this case I don't want datagridview1__CellValidating to be triggered. Is there any condition that I can add in datagridview1__CellValidating?

But I want datagridview1__CellValidating to be executed after modifying the value of the column 2 if I try to select the cell of a column 4 or 5 in my current row.

Is there any solution\\workaround for this?

Answer 1

use CellValidating event in DataGridView and Cancel editing for Column 1 and 2.

private void DataGridView1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
    DataGridViewCellCollection cells = dataGridView1.Rows[e.RowIndex].Cells;
    foreach(DataGridViewCell cell in cells)
    {
       if(cell.ColumnIndex == 0 || cell.ColumnIndex == 1)
       {
          e.Cancel = true;
       }
    }
}

And override the button to close the form because with e.Cancel = true you can not close the form.

protected override void OnFormClosing(FormClosingEventArgs e)
{
   e.Cancel = false;
   base.OnFormClosing(e);
}