Power Apps is a suite of apps, services, connectors, and data platforms that provides a rapid application development environment to build custom apps for your business needs. For more details click here.
A list box in which the user can select one or multiple items. A list box control always shows all available choices (unlike a Dropdown control) and in which the user can choose more than one item at a time (unlike a Radio control).
Reading this article, you can learn how to use List box control in Microsoft Power Apps.
Step 1
Open the URL https://powerapps.microsoft.com/en-us/ in the browser for Power apps,
Create an account with your Organization Mail ID and log in to it, after loggging in to your Power Apps account,
Step 2
First, click on create (+ ) and Select the Canvas app from blank.
Next, give the App name as PAListBox and Format as Phone.
Now, in the Power Apps studio environment, select the Create a form option,
Step 3
To test the List box control, rename the Screen name as ScnBtn, rename the Form name as FrmBtn,
Add the following controls in the Form window for List box feature view,
Insert the Label Control and set the Name property as LblName and Text Property as List box Control in Power Apps.
Insert the List box Control and set the Name property as LstDept and Set the Items Property as ["CSE", "EEE", "ECE", "BME", "IT"] for dept items,
Next, we can Insert the Label Control and set the Name property as LblSelected and Text Property as Concat(LstDept.SelectedItems, Value&",") for Selected dept.
Step 4
Now we can see the preview of your App in Power Apps Studio, and the output of the PAListBox is,
After selecting the items in the List box,
Summary
Now you have successfully tested List box Control - PAListBox in the Power Apps Studio environment.