RadComboBox for .NET MAUI has search feature, however it does not filters the items matching the text, instead it only scrolls to the matching item. We can manually filter the items in the item source but it would be nice to have such filtering built in.

Also we need to highlight the first item that matches the search string. Currently it doesn't seem to be possible. One way could be to select the first item manually which may change the background of the item and give a feel of highlight but that causes problem with selected item because we also need to subscribe to selected item change and do some other processing based on that. If we select item as filter happens then it would trigger selection change multiple times needlessly.

Also it seems that currently RadComboBox dropdown does not have support for keyboard navigation. We need to be able to navigate between items with keyboard up/down arrows so that user can navigate to different items and then press enter to select the highlighted item. This feature might not make sense on mobile but it is needed for desktop platforms.

Let me know if there is already a way to achieve the above behavior.

It would be nice to have the ability to select different item in the dropdown by keyboard up/down arrows.

This feature probably does not make sense on mobile platforms, but it would be great on desktop platforms.

When is edit mode, provide support for closing the drop-down when enter key is pressed

In RadComboBox, when entering text to filter the items in dropdown, it would be nice to have the first item selected by default that matches the filter and also have the ability to select different item by keyboard up/down arrows.

This feature probably does not make sense on mobile platforms, but it would be great on desktop platforms.

Please open and provide the full control templates so we can full customize the controls.  For example, we want to be able to see the combobox control template so we can customize the dropdown beyond just property value changes.

I have a Combobox that I want the width of the dropdown to be larger than the input text width.

Telerik RadComboBox for MAUI looses focus and triggers unfocus event after selecting an item from the dropdown. This behavior works fine on first time page loading. But if we navigate to some other page and then navigate back to the first page then, upon selecting any item from combobox it closes the dropdown but does not loose the focus and hence does not trigger unfocus event.

We are using the unfocus event with event to command behaviour and ultimately triggering a command in viewmodel. This works fine the first time but after navigation it does not work.

Input Validation Support

It appears that by the amount of problems that I have encountered so far that Telerik UI for .NET MAUI has not been tested at all on IOS.

Your own ControlSamples do not run for IOS.

Anyway..

Next problem.

IOS Specific only.

           <telerik:RadComboBox ItemsSource="{Binding Items}"
                                     Placeholder="Select Status"
                                     IsDropDownClosedOnSelection="True"/>

note that to use the Telerik Custom Controls it is necessary to either add an x:name to each control, or dummy instantiate each one.

This can be done in MauiProgram.cs.

Add line

  _ = new RadComboBox();

 

A runtime error occurs when using telerik:RadComboBox and the application will abort.

2022-08-05 10:24:05.765 Xamarin.PreBuilt.iOS[5889:422588] *** NSForwarding: warning: object 0x2837b0780 of class 'Telerik_Maui_InputElement_RadTextField' does not implement methodSignatureForSelector: -- trouble ahead
2022-08-05 10:24:05.765 Xamarin.PreBuilt.iOS[5889:422588] *** NSForwarding: warning: object 0x2837b0780 of class 'Telerik_Maui_InputElement_RadTextField' does not implement doesNotRecognizeSelector: -- abort

 

 

Hi Team,

Currently, the popup for the RadComboBox doesn't allow you to make it wider than the ComboBox's width (even if you set ItemTemplate to be wider).

The only available properties for styling the "dropdown/popup' are listed here https://docs.telerik.com/devtools/maui/controls/combobox/styling, which happens to include DropDownHeight, but not Width.

This feature request asks you to allow us to set this DropDownWidth via Style, Property, ControlTemplate, or whatever best fit the control architecture.

Thank you,

Matthew

In the WPF Combo Box, in addition to the SelectedItem property, there was also the SelectedValue and SelectedValuePath properties. You could bind to a complex object and then define a SelectedValue and SelectedValuePath so that your binding context didn't need to keep a reference to the entire object being represented in the dropdown. Very useful, for example, when your BindingContext does not have access to the object bound to the combobox's items source, but can instead keep track of a common enum or just a unique string instead. Is there any plan to add that functionality to the MAUI combo box?

Null Reference exception is thrown when using Native embedding.

Provide an option to modify the ComboBox so there is no space between the ComboBox and the dropdown.

The width of RadEntry, RadMaskedEntry, and RadComboBox are the same on windows, android and ios. On mac there is difference when the width of the defined Column is set to * in grid: 

MacCatalyst:

Windows:

 

 

 

 

Hi Team,

We have a need for being able to dynamically choose a template for the three available DataTemplate:

Thank you,

Teddy

We would like to be able to override the behavior of the Clear button in the editable combo box.

When the user has started typing into an editable combo box, and they click the Clear button before they've selected another item, we want to revert their text to what was in there before they started typing and keep the previously selected item selected, rather than clearing the text and selected item.

If you can add that functionality, even better, but it should be enough to just expose the Clear button's Click event (with a Cancel param or another way to ensure the text isn't cleared), so we can override the current functionality.

I would like to see a new feature in the RadComboBox for "Select All" functionality.

Here is the general functional paradigm I'm hoping to see.

1. All Selection

• If user checks Select All, it should display every item in the list as checked
• If user unselected All then every item should be unchecked.
  

2. Partial Deselection

• If user unselect only one item, then it should only unselect that item, but also uncheck the "Select All" checkbox, while leaving the reaming items still checked.

If you place an editable ComboBox in a TabView, its DropDown will not close when switching tabs. Just click into the ComboBox input to select an item and navigate to a different tab - the options list stays open.

When the ComboBox is placed inside a modal popup, the dropdown can't be closed on WinUI when clicking outside.

When there are multiple ComboBox controls on the screen with IsEditable set to "True". After clicking the combo or typing a keyword the cursor starts blinking as the focus gets stolen. This freezes the application and requires it to be restarted.