Datagridviewcell content detect by C#

I asked a question to EE you may find below:

I have a datagridview cell containing the following text

" + This is test"

Now I want to show a messagebox sowing message "+" if the mouse clicked on the + sign (In a single cell), and another messagebox "This is test" if mouse clicked on the rest portion. The whole string is showing in a single DataGridViewTextboxCell.

Is it possible? If it is, kindly send me the code in C#.


EE answered me the following (starlite551: had gave me the solution)

int xOffSet = (int)(Screen.PrimaryScreen.Bounds.Width-(Screen.PrimaryScreen.Bounds.Width - Cursor.Position.X)-this.Left-dataGridView1.Left-30);
            int xGridRatio = (int)(dataGridView1.Rows[0].Cells[0].ContentBounds.Width / 2);
            if(xOffSet < xGridRatio)
            {
                MessageBox.Show("+");
            }
            else
            {
                MessageBox.Show("This is test");
            }



It is working fine when the column is the left first column in datagridview but do not work if it is not the left most column

any suggestion?

thanking you