StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POC# - Set Height of ComboBox
text
Body
copied!<p>I want to set the height of a <code>ComboBox</code> (from the Windows Forms <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.control.aspx" rel="nofollow">Control</a>s) to <strong>X</strong> <em>during runtime</em>. </p> <p>I have </p> <ul> <li>the <code>DrawMode</code> Property set to <code>OwnerDrawVariable</code>, to specify that the items are drawn manually;</li> <li>the <code>IntegralHeight</code> Property set to false, to avoid the <code>Control</code> from automatically resizing itself;</li> <li>the <code>ItemHeight</code> Property of the <code>ComboBox</code> also set to <strong>X</strong>.</li> </ul> <p>I've also overriden the <code>DrawItem</code> and <code>MeasureItem</code> events for the comboBox's items (see code below)</p> <p>However, <strong>setting the <code>Height</code> of the ComboBox at runtime only works if the <code>DropDownStyle</code> is set to <code>Simple</code>.</strong></p> <p>I do this both ways, programmatically (modifying the <code>ComboBox</code>'s <code>Height</code> or <code>Size</code>) property, and using a <code>PropertyGrid</code> Control which I have on my App.</p> <p>When I set the height of a <code>DropDown</code> or <code>DropDownList</code> <code>ComboBox</code>, I noticed that Windows automatically changes its height to another value: <strong>Y</strong> (which, after some debugging I noticed to be <strong>X + 6</strong> for some reason).</p> <p>What am I missing? Why does this happen?</p> <p>Here is the code from the handlers:</p> <pre><code>private void DrawItemHandler(object sender, DrawItemEventArgs e) { //Create a new font to write the item Font ComboItemFont = new Font(FontFamily.GenericSansSerif, 8, FontStyle.Regular); e.DrawBackground(); e.DrawFocusRectangle(); //Write the item's value e.Graphics.DrawString(((ComboBox) sender).Items[e.Index].ToString(), ComboItemFont, new SolidBrush(Color.Black), e.Bounds); //Update the source's font to match the current font ((Control) sender).Font = ComboItemFont; } private void MeasureItemHandler(object sender, MeasureItemEventArgs e) { //Do nothing } </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload