Setting DataGridViewRow.Height slow

Question

I have noticed that setting row height in DataGridView control is slow. Is there a way to make it faster?

Answer 1

If you can, try setting the height before you bind the control.

If you can't do that, try making the control hidden before setting the height.

Answer 2

This works in most cases but I'm not sure if this is what you are looking for...

Try setting up the RowTemplate and use that to set the rows height.

        // my test to specify a size for a datagridview row
        dataGridView1.Columns.Add(new DataGridViewTextBoxColumn { Name = "ColumnNameGoesHere" });
        dataGridView1.RowTemplate.Height = 50;
        for (var x = 0; x <= 10000; x++)
        {
            dataGridView1.Rows.Add(x.ToString());
        }

Here is also a nice page on Windows Forms Programming Best Practices for Scaling the Windows Forms DataGridView Control which you may find to be handy: http://msdn.microsoft.com/en-us/library/ha5xt0d9.aspx

Answer 3

What's caused similar layout delays for myself was related to the AutoSizeRowsMode and AutoSizeColumnsMode

DataGridView1.AutoSizeRowsMode = None

will likely fix it.

Also try ColumnHeadersHeightSizeMode to None and AllowUserToResizeRows to False.