I could not replicate the issue in our environment. Attached is the sample I used.

Could you provide more information regaring the setting you use in the WebTab, WebDesktopManager, or WebCombo? Or you could modify the attached sample to replicate the issue.

The sample is tested using all the latest Intersoft component, WebCombo 4 build 217, WebDesktop 3 build 305,  WebUI Framework 3 build 705.

In the test site you attached, in order to make it work you will need to enable the AspNetAjaxSetting in the WebInput. Here is the snippet:

WebInput test = new WebInput();

test.AspNetAjaxSettings.CreatedAtRuntime = true;
test.AspNetAjaxSettings.UpdateControlScripts = true;
test.AspNetAjaxSettings.UpdateControlStyles = true;

I also have to modified the WebControl to remove the previous WebInput in the panel  before adding a new WebInput type to the panel.

Attached is the modified WebUserControl.ascx.

I have create a simple programmatic WebInput creation sample using dropdown box. The type of the created WebInput could be set using the dropdownbox. In the sample, I could not recreate the issue you mention.

Perhaps you could modify the sample to reflect your scenario better, so we could replicate the issue in our environment.

This is an unexpected behavior in WebDialogBox, a bug report has been submitted to the developer. We will inform you if there is any update regarding this issue.

I could not find any property / function to set a custom value in the group row info format. However, using custom aggegrate function, I could display the info you would like in the group footer.

Attached is the sample I used to display the info. During CustomAggegrate server side event, we will need to determine the current grouping using the LINQ query and you will need to re-query the datasource to determine the info you wish to show.