Issue in setting combobox.dropdownwidth to max width in datagridviewcombobox

Asked Oct 17 '18 at 04:42

Active May 26 '22 at 10:38

Viewed 178 times

I have a datagridview combobox column. I need to dynamically adjust the width of combobox to the longest string width, so that user can read lengthy string in the combobox item. My code is

            int width = comboBox.DropDownWidth;
            Graphics g = comboBox.CreateGraphics();
            Font font = comboBox.Font;
            int vertScrollBarWidth =
                (comboBox.Items.Count > comboBox.MaxDropDownItems)
                ? SystemInformation.VerticalScrollBarWidth : 0;

            int newWidth;
            foreach (string s in ((ComboBox)sender).Items)
            {
                newWidth = (int)g.MeasureString(s, font).Width
                    + vertScrollBarWidth;
                if (width < newWidth)
                {
                    width = newWidth;
                }
            }
            comboBox.DropDownWidth = width;

But this not working. I dont think there is any problem with the code but still the width is not changed. Do I have to change any property of datagridview in order to change the width?

edited Oct 17 '18 at 06:31

Nikhil Dinesh

3,359
2
38
41

asked Oct 17 '18 at 04:42

Greeshma R

You can use tooltip of combobox to make it more readable. – Srikanth Oct 17 '18 at 04:47
Can you help me with tooltip. i have tried using this code – Greeshma R Oct 17 '18 at 05:25
https://stackoverflow.com/questions/680373/tooltip-for-each-items-in-a-combo-box%3C/a%3E – Greeshma R Oct 17 '18 at 05:26
But some problem in displaying text. Sometimes black color appears in tooltip and couldn't see tooltip text too – Greeshma R Oct 17 '18 at 05:28
Better to use a horizontal scrolling view. – Nikhil Dinesh Oct 17 '18 at 06:34

Issue in setting combobox.dropdownwidth to max width in datagridviewcombobox

0 Answers0