plus minus button

[wil]

Am I missing something?   I don't see how to add plus minus button without using dataform.  Is there a standalone control for this that I can use in xamarin forms?

 

thanks much

 

[Lance | Senior Manager Technical Support]

Hello Haluu,

I'm assuming you're referring to a NumericUpDown or NumericBox type of control? Currently, there is no Xamarin.Forms control for this.

You can however create a custom renderer and use the native control. Tor example, for the UWP app, you can use the RadNumericBox from UI for UWP. For Android, you can use the Telerik NumberPicker. For iOS, you'll have to create your own.

Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik

[wil]

Oh, I see but telerik dataform seems to create the plus/minus button.  Is that correct?

 

 

[Lance | Senior Manager Technical Support]

Hi Haluu,

Yes, we create the native controls for the native platforms, this is how all of the editors work internally.

It's just that with the integer editor, there is not a pre-existing Xamarin.Forms control. Therefore, if you want a standalone NumericBox, you'll need to create one on the native platform, which is done using a Custom Renderer.

Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik

[wil]

Ok, one more question then

 

How can I make TextEditor as multi-line editor?  There is no EditorType.MultilineTextEditor.

 

thanks much

 

[Lance | Senior Manager Technical Support]

Hi Haluu,

For anything outside of the shipped editors, you'll need to make your own custom editor. See here for how to create a custom editor, you'll see the overrides listed for each platform.

To summarize, you need to create renderers for each platform then assign it to the DataForm in the Xamarin.Forms project like this:

dataForm.RegisterEditor("MyPropertyThatNeedsMultilineEditor", EditorType.Custom);

You can also find examples of custom editors in the SDKBrowser demo, see here for a description of the demos.

Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik