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xamarinxamarin.formsuwprenderer

Custom renderer for Grid

I am trying to create a custom Renderer in UWP for Xamarin.Forms.Grid, but I can't figure out the type-parameters for ViewRenderer<TElement, TNativeElement> can anybody help me?

I tried with ViewRenderer<Grid, FrameworkElement> but Control is null

Solution

  • You need to set the Control by overriding OnElementChanged So Implement your view renderer by inheriting like you did above:

    ViewRenderer<Xamarin.Forms.Grid, XControl.Grid>

    then override OnElementChanged:

    using XControl = Windows.UI.Xaml.Controls;
.
.
.
protected override void OnElementChanged(ElementChangedEventArgs<XControl.Grid> e)
{
   if (e.NewElement != null)
   {
      if (Control == null)
      {
         var container = new XControl.Grid();
         SetNativeControl( container);
      }
   }
}