How to get Widget To Widget Communication to work?

Development Programming & Scripting
1

I have Created a “Master Widget” containing multiple widgets, and now i want Widget 1 to send text to widget 2, how is that possible, have tried almost everything, from Blueprint Interface to CastTo, etc. etc.
Any help Is appreciated I’m using UE 5.2

Widget one had a ComboBox (String) containing 5 options

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Widget 1 Event Graph

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Widget 2 has a textbox with a binding to GetText
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Widget 2 GetText Graph

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In the Level Blueprint i have the Create Master Widget and added to the viewport, i can see the widgets, however i can not get them to communicate with each other.

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2

The crucial thing is: widget X needs a reference to widget Y to communicate with it.

If X makes Y, it already has a reference. X can also pass a reference to itself into Y.

Y can also use ‘get parent’ to find out about X.