Suspended ball

[zhe]

Does telerik have controls that can be suspended? Suspension balls similar to IOS can be moved at will.

[Lance | Senior Manager Technical Support]

Hi Zhe, I am unfamiliar with suspension ball control concept. Can you provide a link to an example?

[zhe]

For example, put a button in the Scrollview control. When sliding up and down, the button remains in place and is not affected by the sliding.

[Lance | Senior Manager Technical Support]

Hello Zhe,

Thank you for the description. Telerik UI for MAUI doesn't have a control that has that specific behavior. although we do have some features that achieve it, like sticky group headers in a Grid/List, but there's no individual control that will integrate with a base ScrollView like that.

Universal Custom Approach

The good news is that you could easily implement this yourself by subscribing to the ScrollView's Scrolled event and use the e.Scroll value for the other element's Translate value. This will ensure the child element in the ScrollView's visible canvas area.

Here's an example that will always keep a RadButton in view, regardless of scroll direction:

private void ScrollView_Scrolled(object sender, ScrolledEventArgs e)
{
    MyButton.TranslationX = e.ScrollX;
    MyButton.TranslationY = e.ScrollY;
}

I've attached a runnable example

Regards,
Lance | Manager Technical Support
Progress Telerik

[Lance | Senior Manager Technical Support]

I just realized that I created a .NET MAUI project instead of a Xamarin.Forms project, but that's okay because the code is 100% compatible in Xamarin.Forms.

[zhe]

Thank you, manager LAN. The problem has been solved