Category "uielement"

Is there any way to add ui-element, ElMessageBox confirm button click event?

When I delete a data from the table, I want it to pop up a warning in the middle of the screen first.Delete function is ready,i just want to add confirm button

In Unity UIElements, what is the equivalent to 'Scale with ScreenSize' of UGUI Canvas Scaler?

If I want to make my UI gameobjects stay the same size and position on all devices when I use UGUI in Unity3D, I simply set UI Scale Mode to Scale with Screen S