Select multiple Rows without pressing Control Key

Question

I have a gridview where I can select multiple rows by pressing a control key. Is it possible to achieve the same without pressing a control key.

Answer 1

I had to do this for a touch screen where I wanted multiselect on single click, without ugly check boxes. Why over complicate it, just keep a not of the Index'es

    private List SelectedIndexs { get; set; }

Then add or remove them from the list as you click them... Then look through you datagrid and select the rows in the list.

    private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
    {
        if (SelectedIndexs.Contains(e.RowIndex))
        {
            SelectedIndexs.Remove(e.RowIndex);
        }
        else
        {
            SelectedIndexs.Add(e.RowIndex);
        }

        foreach (DataGridViewRow row in this.dataGridView1.Rows)
        {
            row.Selected = SelectedIndexs.Contains(row.Index);
        }
    }