Hi JeongSeok,
We regret for the inconvenience caused. I am afraid, I was not able to see the problem in the sample attached.
TabbedAdv.zip
Could you please let me know whether are you using Custom tab controls in your application? If so, we had a padding problem in custom tabControl previously, which has been fiixed internally and this fix will be available in the next patch as soon as possible.
As a workaround, could you please try setting the padding in the form’s constructor after InitializeComponent.
Let me know if this works for you. Thank you for using Syncfusion products.
Best Regards,
Seetha
>Version : Syncfusion Essential Studio V4.1.0.51
>
>There are attributes for Padding of TabControlAdv is not working properly.
>
>Padding for X is working in design time and also in runtime.
>
>Padding for Y affects the appearance in design time but it does not affects in runtime.