How do I change value of selected cell on Gridview

Question

How do I change the value of a selected cell using a button for eg changing a cell value from 1 to 2

int row = 0;
            row = dataGridView1.Rows.Count - 2;
            dataGridView1["Amount", row].Value = Keytxt.Text;
            Keytxt.Clear();

this is my current solution but it only changes the value of the last cell in the column

Answer 1

if you want to change it using button and textBox try this code,but at the first take row and cell number from user like this...

private void button1_click(object sender,Eventargs e){
  int rowIndex = int.Parse(txtRowIndex.Text);
  int cellIndex = int.Parse(txtCellIndex.Text);
  //but here you should validate that textBoxs of row and cell index is only numeric or you can use numericUpDown it will be super easy to use
  dataGridView1.Rows[rowIndex-1].Cells[cellIndex-1].value = Keytxt.Text;
  Keytxt.Clear();
}