Set DataGridView cell value and add a new row

[Uros Calakovic]

I have an unbound DataGridView control with two columns. The first one is a DataGridViewButtonColumn and the second DataGridViewTextBoxColumn. When my form is first shown the DGW is empty and the only row is the one with the * in the row header (new/empty row) When I click a cell in the first column an OpenFileDialog gets shown and when I select a file the file name is written in the second cell in the same row. This works, but the row is still marked with * and a new row isn't added. If I edit the second cell manually, the row header is marked with the pencil sign and a new/empty row is added below. Is there a way to achieve this when I edit a cell programatically? Here is my current code:

    private void dataGridView1\_CellContentClick(
        object sender, DataGridViewCellEventArgs e)
    {
        if (e.ColumnIndex == 0)
        {
            SelectFile(e.RowIndex);
        }
    }

    private void SelectFile(int rowIndex)
    {
        if (openFileDialog.ShowDialog() == DialogResult.OK)
        {
            dataGridView1.Rows\[rowIndex\].Cells\[1\].Value =
                openFileDialog.FileName;
            dataGridView1.CurrentCell = dataGridView1.Rows\[rowIndex\].Cells\[1\];
        }
    }

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