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Add Text and Delete with Lost Focus (IsEditable)

Good Morning,

I have the problem with the combobox control when is Editable.

I need to have the ability to enter text and not lose it when losing focus.

I would need it as in the WPF Theme studio demo that I have attached.

Thank you

Attachment: Screenshot_20230320_093358_61b242a8.zip

7 Replies

BA BagavathiPerumal Apranandham Syncfusion Team March 22, 2023 01:46 PM UTC

Hi Edoardo Gazzola,

We have confirmed the reported scenario is a defect and logged a report for the reported scenario “Entered text was automatically cleared when the focus is lost in ComboBoxAdv Editing mode”. We will provide the fix in the Weekly NuGet release on 11th April 2023.

You can track the status of this defect using the following feedback link:  Entered text was automatically cleared when the focus is lost in ComboBoxAdv Editing mode in WPF | Feedback Portal (syncfusion.com)

If you have any more specification replication procedures or a scenario to be tested, you can add it as a comment in the portal.

Please let us know if you need any further assistance.

Note: The provided feedback link is private, and you need to log in to view this feedback.

Bagavathi Perumal A

EG Edoardo Gazzola March 22, 2023 01:50 PM UTC

Bagavathi Perumal,

Thankyou for your feedback.

I also ask you if it is possible to increase the width of the selection button because with the touch it is difficult to open the drop-down menu.


BA BagavathiPerumal Apranandham Syncfusion Team March 24, 2023 04:38 AM UTC

Hi Edoardo Gazzola,

We suggest you to use the “SfSkinManager.SizeMode” property value as “Touch” to increase the size of the DropDownButton of ComboBoxAdv. Please refer to the attached sample for your reference.

Bagavathi Perumal A

Attachment: ComboBoxAdvDropDownSize_11bd46e2.zip

EG Edoardo Gazzola March 24, 2023 08:36 AM UTC

Bagavathi Perumal,

is it possible to apply global Touch mode for the whole application?

I tried setting the property before InitializeComponent() of the MainView without success.

Attached is the project


Attachment: wpfappmaster_51754c00.zip

KA Karthick Arjunan Syncfusion Team April 4, 2023 10:49 AM UTC


To apply touch mode globally, set the SizeMode property to Touch on every page of the application.


After analyzing the provided sample, it was found that some controls were not properly applying themes. To apply a theme to all controls in the application, use ApplyStylesOnApplication. However, if a new control is loaded at runtime, it will not automatically inherit the theme of the rest of the application. To apply the theme to the new control, you will need to manually reference the resource dictionary containing the theme in the XAML code for the new control.


We have attached the modified sample that you provided. Kindly check the sample and let us know your concerns.

Attachment: wpfappmaster_51754c00_(2)_b84477d2.zip

EG Edoardo Gazzola April 4, 2023 11:08 AM UTC

Hi Karthick Arjunan,

Ok...Thank you for the technical support.


KA Karthick Arjunan Syncfusion Team April 5, 2023 08:49 AM UTC


We are glad that the provided response meets your requirement. Please let us know if you need further assistance. As always, we are happy to help you out. 

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