C# WinForms DataGridView background color rendering too slow

Question

I\'m painting my rows in a DataGridView like this:

private void AdjustColors()
    {            
        foreach (DataGridViewRow row in aufgabenDataGridView.Row         


        

Answer 1

As SwDevMan1 said, you should first work on removing the Enum.Parse call. Are you using data binding to populate the grid? If so, you can use Rows[index].DataBoundItem to access the data bound object for the row and access the AufgabeStatus status directly.

The second tweak I would suggest is to call SuspendLayout() and ResumeLayout() before and after, respectively, manipulating the grid.