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How to access context passed in Navigate

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Posted on by Srini Microsoft Employee

I am binding data to list box and when selecting an item, it navigates to a screen2.

Screen2 should load data based on item selected in list box.

Below is the navigate command, which is navigating to Screen2, but not sure on how to access context (data in below example)

Navigate(Screen2, ScreenTransition.Fade,{data:Id})

Please help

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Meneghino 6,949 on at

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Hello Srini.
You do not need to pass a context in navigate in your case, you can refer to the value of the list box in Screen1 even from Screen2.
However, I am a little confused. If you need to select one item only, then a dropdown would be the correct control to use instead of a list box. Do you really need to select multiple items of a list box?

In any case, here is what I would do to test your scenario:
Create a new dropdown (Dropdown1) in Screen1 and leave its properties as they are
Create a text box (TextBox1) in Screen2 and set its text property as follows:
TextBox1.Text = Dropdown1.Selected.Value
You will see that without need for context, the value shown in the text box in Screen2 will reflect the section in the dropdown in Screen1. This is the way PowerApps works.

Please let me know how you get on

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Srini Microsoft Employee on at

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But when i am trying to set the text property for the testbix in second screen it says,

This rule creates a circular refernece betwproperties, which is not allowed.
Where should set the expressions

textbox.text=dropdown.selected.value

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Meneghino 6,949 on at

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Ok, please see below the screenshot of the simple example. You can see the two screens on the left, where the first one only has a dropdown and a navigate button, whereas the second screen has the text box. You can see at the top of the screen where to enter the value for text property.
The expression is just a standard way to describe which property of which control needs to be modified.
Please let me know how you get on or if you need more clarifications.

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