The Problem:
.Net Maui – ContentView with a ViewModel: unable to update UI from changes in the view model. Why is the data binding not working as expected in this scenario?
Q&A
What I can tell from your code you set the Label from the View and not from the ViewModel and to be frank you should not have the ContentView communicating with the ViewModel. It should be resuable.
The View communicate with the ViewModel and with the control.
Based on your code, I achieved this function, you can refer to the following code:
Update the value of the ContentView by binding to a property in a ViewModel and handle a Command in the ViewModel to update the property.
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