ComboBoxAdv and dropdownwidth

[Christian Rattat]

Hi,

is there a possibility to automatically set the width of the drop down area (DropDownWidth property) in comboboxadv depending on the content of the drop down?

Thanks in advance,
Christian

[Christian Rattat]

I just forgot this:

We use SF Suite 3.0.1.0 (we plan to update to 4.1 soon).

Thanks,
Christian

>Hi,
>
>is there a possibility to automatically set the width of the drop down area (DropDownWidth property) in comboboxadv depending on the content of the drop down?
>
>Thanks in advance,
>Christian

[Anupama Roy]

Hi Christian, We cannot set the DropDownWidth automatically depending on the content of the dropDown.However,you can iterate through each added item and store the longest item''s length and measure the specified string that is drawn with specified font.Then you can assign this new width to the DropDownWidth property as illustrated below. Graphics g = this.comboBoxAdv1.CreateGraphics(); this.comboBoxAdv1.DropDownWidth =longest.Length ; int offset = Convert.ToInt32(Math.Ceiling(g.MeasureString(" ",this.comboBoxAdv1.Font).Width)); int newwidth = Convert.ToInt32(Math.Ceiling(Convert.ToDouble(g.MeasureString(longest, this.comboBoxAdv1.Font).Width ))) + offset; this.comboBoxAdv1.DropDownWidth =newwidth; Please take a look at the sample attached. Regards, Anu.

trial_combo.zip

[Christian Rattat]

Hi, this works for me! Thanks, Christian > >Hi Christian, > >We cannot set the DropDownWidth automatically depending on the content of the dropDown.However,you can iterate through each added item and store the longest item''s length and measure the specified string that is drawn with specified font.Then you can assign this new width to the DropDownWidth property as illustrated below. > >Graphics g = this.comboBoxAdv1.CreateGraphics(); > >this.comboBoxAdv1.DropDownWidth =longest.Length ; >int offset = Convert.ToInt32(Math.Ceiling(g.MeasureString(" ",this.comboBoxAdv1.Font).Width)); > >int newwidth = Convert.ToInt32(Math.Ceiling(Convert.ToDouble(g.MeasureString(longest, this.comboBoxAdv1.Font).Width ))) + offset; > >this.comboBoxAdv1.DropDownWidth =newwidth; > >Please take a look at the sample attached. > >Regards, > >Anu. > >

trial_combo.zip