将所选单元格的值从datagridview更改为零（0）

Question

I have connection to an Excel file which displays in datagridview. I would like to change value of selected cell ind datagridview to "0" (zero) by clicking a button.

As you can see from pic, there is a button "Null cell" and selected one cell. Any ideas?

Answer 1

Try to use the code below. If you will select several cells than the button sets the value to zero only for the first cell.

private void button1_Click(object sender, EventArgs e)
{
    var selected = dataGridView1.SelectedCells[0];
    dataGridView1.Rows[selected.RowIndex].Cells[selected.ColumnIndex].Value = 0;
}