C# Datagridview method Rows.Add works incorrectly - it add line on previous, not on last

Question

I have a problem with datagridview.Rows.Add method. I want to add a new line but in the last line, not in previous. I don't know why the method Add doesn't work in this case. My code:

        dataGridView1.RowCount = 3;
        dataGridView1.ColumnCount = 4;

        dataGridView1.Rows[0].Cells[0].Value = 1;
        dataGridView1.Rows[0].Cells[1].Value = 2;
        dataGridView1.Rows[0].Cells[2].Value = 3;
        dataGridView1.Rows[0].Cells[3].Value = 4;

        dataGridView1.Rows[1].Cells[0].Value = 5;
        dataGridView1.Rows[1].Cells[1].Value = 6;
        dataGridView1.Rows[1].Cells[2].Value = 7;
        dataGridView1.Rows[1].Cells[3].Value = 8;

        dataGridView1.Rows[2].Cells[0].Value = 9;
        dataGridView1.Rows[2].Cells[1].Value = 10;
        dataGridView1.Rows[2].Cells[2].Value = 11;
        dataGridView1.Rows[2].Cells[3].Value = 12;


        dataGridView1.Rows.Add(13,14,15,16);

And result:

I will be thrilled for any help or advice!

Answer 1

This is the correct way to insert a line in a grid view:

dataGridView1.Rows.Add(13,14,15,16);

The last line marked with * is in fact a placeholder for new lines and it is better not to insert it directly