Redraw C#

Question

Hi there,

We have a DataGridView and the following code:

private void button1_Click(object sender, EventArgs e)
{

    dataGridView1.Rows.Add(15);

            int k = dataGridView1.Rows.Count - 1;

            for (int i = 0; i < k; i++)

                dataGridView1.Rows[i].Cells[0].Value = i;

}

We want that the changes will occur after cliking on the button.

We tried to change code to:

private void button1_Click(object sender, EventArgs e)
{

     dataGridView1.SuspendLayout();

    dataGridView1.Rows.Add(15);

            int k = dataGridView1.Rows.Count - 1;

            for (int i = 0; i < k; i++)

                dataGridView1.Rows[i].Cells[0].Value = i;

    dataGridView1.ResumeLayout(false);

}

but adding this rows didn't help.... :(

Someone know why?