How to acces Object properties of an object that is in another screen

Hello

If i want to acces an object property of an object in the same screen then i can say

Screen.FindItem('Text box_1').Text.= ...

If i want to acces an object property in a scrren window, from a parent window. i can also say

Screen.FindItem('~/ScreenWindow1/Text box_1').Text=...

But lets say i have 3 screens Screen-1, Screen-2, Screen-3 that are shown in the same screen window. How can acces an object property of Screen-2 from the script of Screen-1 (Both screens are in the same level) I cannot say   Screen.FindItem because the item is not in the same screen, or not in the child window?

Is that possible?

Hi,

have a look at this:

https://support.industry.siemens.com/cs/ww/en/view/109758536

Chapter 5.4.1 has the details on how to find the objects that are not in the same screen.

For example, what should be possible is to use

Screen.FindItem("../Screenwindow_2/Button_1"). This is a relative addressing searching from the object with the script and not searching from the root window (~). Both should be possible.

Hope this helps.
ZickZackTIA

Hi,

have you had a look at the manual for FindItem (Link)?  (Sorry, I hope this sounds not stupid). From my point of view this is a good description. Otherwise it would be usefull for me to see a small sketch.

Greetings!

Hi, after log time i couldn't get this issue.

What i want is to change an object property (WebControl_1.URL) from another screen, that is not actualy open (shown) in a screen window.

Example: I have a main window Main-1 and a Screen_Window1 inside it. In this Screen_Window1, Sub_Scren_1 , ...2, ...3,  ...4  can be displayed.

Actualy the Sub_Screen_1 is displayed, But i want to change the property of the Sub_Screen_2 that is not actualy displayed in the Screen Window1.

So if i write for example from the Main Window

UI.FindItem('~/Screen window_1/WebControl_1.').URL  then the URL of the WebControl_1 of the actual Sub_Screen_1 will be changed.

I write something like

UI.FindItem('~/Screen window_1/Sub_Screen_2/WebControl_1.').URL  but this  is not working.

Hi mdarende,

I might have dealt with a similar issue where I wanted to set properties in a nested screen during navigation. At that moment the screen window is just an empty container and does not contain an instance of the screen. Thus the items you are trying to reference do not exist.

This method may be useful to you or someone else. In short it's using the screen window caption as a pseudo dependency injection parameter. An important note is that it only works once when the screen is loaded, if you needed to inject again you'd have to switch/clear the screen of the screen window.

As follows:

1.  Declare a script object that contains the data you want to inject. I do this in a global script which roughly looks like this:

(This picture is from the documentation)

If you would like to access Circle_1 properties from Screen_3 which is inside Screen_window_2 with Button_1:

Go to parent screen with Screen.ParentScreen and then find the item in "screen window" that you want.

With Press of a button: 

Screen.ParentScreen.FindItem('./Screen_window_1/Circle_1').BackColor = HMIRuntime.Math.RGB(0, 0, 255);

 (I know, this post is old but my comment might help many others, hopefully.)