Two questions:

1.

Can someone point me to an example of an unbound multicolumncombobox, e.g. adding items manually? I found an example

https://docs.telerik.com/devtools/winforms/controls/multicolumncombobox/populating-with-data/unbound-mode

but this refers to properties which do not seem to exist (e.g. MultiColumnComboBoxElement and EditorControl).

2. In a databound multicolumncomboBox, when the user uses the drop-down, the drop-down appears with a transparent background, so you can see the elements rendered under it as part of the text... this makes it almost impossible to read. Is there a way to remove this transparency? I do not see a property. Is there a reason why this control is designed this way as opposed to being like a standard drop-down combo box?

There is no server event that gets triggered when a user uses the clear function. The logical event would be to trigger the SelectedIndexChanged since it is essentially going from a value to nothing, therefore changing the selected index.  I'm sure that since the world is slowly trying to forget about server programming and concentrating on Java that there is some java solution that won't do me a hill of bean worth of good.  

My point, would it be so bad to have the clear function trigger something?

Hello. I'm testing MultiColumnComboBox and when loading the page I get "Uncaught TypeError: Cannot read property 'wrapper' of undefined" error. This is with CDN disabled. When I turn CDN on, everything runs OK. Telerik UI is updated to 2020 1 219 version. What am I missing or need to upgrade? I can't have CDN enabled on production server.

The exception happends in Telerik.Web.UI.WebResource.axd in c.RadMultiColumnComboBox._initializeKendoWidget:

K.kendoWidget=a(K._element).kendoMultiColumnComboBox(J).getKendoMultiColumnComboBox(); <-------- here the K.kendoWidget is undefined
var I=$telerik.$("#"+K.get_clientStateFieldID());
if(I){K.kendoWidget.wrapper.append(); <-------- here it crashes

I liken this control to serving a quiche with a runny middle. 

It has tons of potential, but falls short of the RadComboBox.  I know I'm way over simplifying, but seems like all that had to be done was to add the ColumnsCollection as an alternative to the RadComboBox control.  Didn't even need a new control, shrouded in kendo hocus pocus.  It took me 4 hours of research to cobble together this as a way to just get the text value of a RadMultiColumnComboBox

how can we search the items list like a regualar dropdown :

ddl.SelectedIndex = ddl.Items.IndexOf(cbxPractitionerList.Items.FindByValue("X");

Hi to all

If i put a MultiColumnBox in RadGrid as soon as i click on the box the table of the results appears and disappears in half a second

If i write part of the key everything works fine.

Is this a bug, a feature or something else?

Thanks 

Nicola

Hi,

This is really needed,  the RadCombobox already has such a feature.

Marc