Delete Confirmation Window in Canvas App

To create a popup delete message box in Power Apps, you can use a combination of a button control and a confirmation dialog box. Here's how you can do it.

Create a Button: Add a button control to your Power Apps screen. This button will trigger the delete action and open the confirmation dialog box.
Confirmation Dialog Box: Create a confirmation dialog box that appears when the delete button is clicked. You can use a combination of labels, buttons, and controls to design this dialog box.
Delete Action: Implement the delete action for your app. This could involve removing a record from a data source or performing any other necessary actions.

Step 1. OnClick of the Delete button it will open Delete window screen.

onClick

Create

Rectangle
Label
Cancel Button
Ok Button

Step 2. Define a variable and set its visibility property to the value of 'VarShowDeletePopUp.

Create a variable and Visible = VarShowDeletePopUp.

Variable

Step 3. When the action is triggered, it sets the variable 'VarShowDeletePopUp' to false, indicating that the delete popup should not be shown.

OnSelect = Set(VarShowDeletePopUp,false)

Delete popup

Step 4. Set the visibility based on the value of the variable 'VarShowDeletePopUp'.

Visible = VarShowDeletePopUp

Visibility

Step 5. Upon selection of Cancel button, update the variable 'VarshowDeletePopUp' to false

OnSelect = Set(VarshowDeletePopUp,false)

Cancel button

Step 6. Set the visibility based on the value of the variable 'VarShowDeletePopUp'.

Visible = VarShowDeletePopUp

Set

Step 7. Upon selection of Cancel button, update the variable 'VarshowDeletePopUp' to false and delete the selected record in Accounts entity.

OnSelect = Set(VarshowDeletePopUp,false);Remove(Accounts,AccountGrid.Select)

Selected record

Below is output Screen.

Output Screen