Windows Forms DataGridView can't enter data in the last row

Question

I was looking for a way to nicely enter data in the form of a matrix, and came across the DataGridView control. I create and edit it dynamically, and so far it worked quite well. However, now I am having this weird problem: I can edit all of the cells normally, but when I come to the last row and try to enter data, I see my values written over the cell values in the row above .

Here is my code example:

            DataGridView table = new DataGridView();
            table.RowCount = 3;
            table.ColumnCount = 3;
            table.ColumnHeadersVisible = false;
            table.RowHeadersVisible = false;
            table.ScrollBars = ScrollBars.None;
            for (int i = 0; i < 3;++i)
                table.Columns[i].Width = 40;
            int width = 40 * 3;
            int height = 22 * 3;
            table.Width = width;
            table.Height = height;
            this.Controls.Add(table);

( Note : the purpose of this code was just to see what I can do with the control, it isn't supposed to do anything useful.)

Also, I have seen someone on a forum saying that I should disable users from adding rows, but when I do that, I have only two rows (instead of three like I specified), and that gray area where the third row should be.

Edit : another weird thing I've noticed is that, if I click 3 times in the cell of the last row, I can edit it normally.

Answer 1

i Change your code, and it's work. do this:

 DataGridView table = new DataGridView();

        table.ColumnCount = 3;
        table.Rows.Add(3);
        table.ColumnHeadersVisible = false;
        table.RowHeadersVisible = false;
        table.ScrollBars = ScrollBars.None;
        for (int i = 0; i < 3; ++i)
            table.Columns[i].Width = 40;
        int width = 40 * 3;
        int height = 22 * 3;
        table.Width = width;
        table.Height = height;
        this.Controls.Add(table);
        table.AllowUserToAddRows = false;

first Add your columns and then add rows with table.Rows.Add(Number of rows), and at the end of code set allow users to add rows to false.