How to access the supported patterns of the WindowsElement

[darshanls]

Hello,
I would like access the supported patterns for the WindowsElement like Scroll Item Patterns etc...
Because for some of the verification I want scroll the item into view without clicking on the element.

[liljohnak]

Took us forever to get a good version of scroll. Hope this helps get you started:

public void ScrollDownToElement(AppiumWebElement wpfList, string name)
{
  if(!localIsVerticallyScrollable()) return;
  while(localKeepScrolling())
  {
    var firstMatch = wpfList.FindElementsByXPath("*/*[@Name = '{name}']").FirstOrDefault(); //Check immediate children for elements with a name match
    if(name == null) OurMouseLibrary.MouseWheelScrollDown();
    else return;
  }
 
bool  localIsVerticallyScrollable()
{
  if(bool.TryParse(wpfList.GetAttribute("Scroll.VerticallyScrollable"), out bool isVerticallyScrollable)) return isVerticallyScrollable;
  return false;
}
bool localKeepScrolling()
{
  if(double.TryParse(wpfList.GetAttribute("Scroll.VerticalScrollPercent"), out double verticallyScrollPercent)) verticallyScrollPercent<100;
return false;
}
}

[darshanls]

Thank a lot for the reply. Let me try this.

[darshanls]

It's amazing solution I tried above suggestion, it almost works for my scenario.

Is there any way to call a method of pattern. For example ScrollItemPattern support a method ScrollIntoView(), now how to call ScrollIntoView() method from WindowElement. I think this single method can resolve many of my problem.

[liljohnak]

@darshanls not in C#. I saw a method in javascript() that would do this.

[liljohnak]

@darshanls The almost part of working for the rest of your cases can get a little complicated.
In my situation, I found two ways that worked well to know when I scrolled to the listItem enough to click it.

1. listItem.GetAttribute("Offscreen") == false
2. listItem.GetAttribute("BoundingRectangle") is contained within the ScrollViewer control

[anunay1]

OurMouseLibrary.MouseWheelScrollDown();

@liljohnak : I am getting an error here, have you implemented this library? It will be good if you can share that also.

[liljohnak]

@anunay1 We are using this to scroll.
https://github.com/charygao/MouseKeyboardLibrary/blob/3d58676a02426c00ff4676b6bbffc64bd442d2b3/MouseKeyboardLibrary/MouseSimulator.cs#L252

[huster-songtao]

ScrollDownToElement

#1538 (comment)