Resize ComboBox

[Martin Gleiß]

Hi,

is it possible to resize the combobox without resizing the column?

More specific: My Grid has a ComboBoxColumn with sometime long text and I want to show in the DropDown the whole text, but in the Grid only a fix width. How can I manage this?

Best Regards

[Martin Vasilev]

Hello Martin Gleiß,

Thank you for writing.

You can set MinSize or Width in the editor's PopupOpened event. Please consider the following code snippet:

void radGridView1_CellBeginEdit(object sender, GridViewCellCancelEventArgs e)
{
    RadDropDownListEditor editor = this.radGridView1.ActiveEditor as RadDropDownListEditor;
    if (editor != null)
    {
        RadDropDownListEditorElement editorElement = (RadDropDownListEditorElement)editor.EditorElement;
        editorElement.DropDownSizingMode = SizingMode.RightBottom;
        editorElement.PopupOpened += new EventHandler(editorElement_PopupOpened);
    }
}
void editorElement_PopupOpened(object sender, EventArgs e)
{
    //((RadDropDownListEditorElement)sender).Popup.Width = 300;
    ((RadDropDownListEditorElement)sender).Popup.MinimumSize = new Size(150, 0);
}

I hope this helps. Let me know if you have any additional questions.

Sincerely yours,
Martin Vasilev
the Telerik team

[Martin Gleiß]

Hi,

which assembly have I to include to use"RadDropDownListEditor"?

[Martin Vasilev]

Hello Martin Gleiß,

Thank you for getting back to me.

RadDropDownListEditor is located in the Telerik.WinControls.UI.dll assembly. You should also add the following namespace in your using clauses:
 

using Telerik.WinControls.UI;

Best wishes,
Martin Vasilev
the Telerik team

[Trevor]

I need to adjust the size of the drop down list on a grid view combo box column, and I am trying the code you have shown here, but I cannot access RadDropDownListEditorElement.  I have no idea what version I am using.  I use telerik controls at work and they already had these controls when I started.  I have using Telerik.WinControls.UI; in my using statements, and am referencing the Telerik.WinControls.UI dll.

[Martin Vasilev]

Hello Trevor,

Thank you for writing.

Recently, we have changed the default combo-box column editor and if you are using an old version, it is possible that you cannot get a RadDropDownListEditor. Please try using RadComboBoxEditor and RadComboBoxEditorElement instead. Still, I recommend upgrading to the latest version Q2 2010 SP2 since it contains a numerous bug fixes and improvements. 

Let me know if you need any additional assistance.

Greetings,
Martin Vasilev
the Telerik team