Question

I have put a datagridview into my windows form. I measure width and height of the screen and then I draw empty cells on the screen. That works fine, problem is that I don’t know how much cells I can put on my screen depending on width and height. I get a lot more cells then I should. When I draw them I’am getting more cells than size of my screen on my right and on the bottom of my screen.

I’ll put some code so you can see what I am talking about:

public static int height= Screen.PrimaryScreen.Bounds.Height;
public static int width= Screen.PrimaryScreen.Bounds.Width;

public void draw()
{
    number_of_cells_width = width/ 5;  //I have put number 5 because I think they are 5x5 by default size
    number_of_cells_height = height / 5;
    for (int i = 0; i < number_of_cells_width ; i++)
    {
        grid.Columns.Add("", "");
    }
    for (int i = 0; i < number_of_cells_height ; i++)
    {
        grid.Rows.Add("");
    }
}

And I have put datagridview to fill my parent.
So I get a lot more cells then I should. Any idea how to fix this?

I think some dividing should do the job. But I don’t see what I have done wrong.

Thank you

Answer 1

Screen.PrimaryScreen.Bounds.Width Does not take into account the windows title bars etc …

So you will have to take these elements into account if you want to use this method. Or simply get the size of your DataGridView, and calculate from there ?

DatagridView1.Height and DatagridView1.Width should come in handy.

Then just put the code in the correct event, so that you reajust when the window gets resized 🙂

Edit : the event Resize of the datagridView should suit your needs 🙂

Edit 2 :

foreach (DataGridViewColumn col in DataGridView1.Columns) 
{
    col.AutoSizeMode = DataGridViewAutoSizeColumnMode.None;
    col.Width = 5;
}
foreach (DataGridViewRow row in DataGridView1.Rows) 
{
    row.Height = 5;
}

The following snippet should parse all columns and rows and set their size to 5. So you will have cells 5*5 and columns which dont autosize