I have a Screen1 with Gallery1 and Screen2 with Gallery2. When I navigate from screen 1 to screen 2, for initial 2 to 3 seconds it shows the previously loaded data then it statrs to load the new data. Is there any way to clear the screen 2 Gallery.Items while navigating back to Screen1 so that next time when I navigate to screen2 it will be fresh screen where i can show the Loading image.
That link is a good place to start learning about collections.
What is the data sources for these 2 galleries? If you want to refresh the data in Gallery1 before your navigating to Screen2, you could add the Refresh function to the OnSelect property of the button you clicked to navigating to Screen2.
Gallery1 has the list of customers when you select any one of the customer and navigate to the second screen it shows the list of projects(Gallery2) for the selected customer. Now if you go bak to customer screen and select some other customer in this case you can see the projects for the previously selected customer for first 2 to 3 seconds later it will load the actual project list for the customer which you selected second time.
Datasource is sql sever views
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