I created an installer which can do either fresh install or upgrade existing. In fresh install it worked good. Problem come when I do upgrade. Here I attach the screenshot during upgrade.
I cloned and customized SQLLogin dialog window. This would allow users to choose whether they want to upgrade database or not.
I can assure you that the credentials and properties assigned to SQL Connection, text boxes & dropdowns are all correctly configured.
If I changed the properties into new ones (I tried to create new properties), these errors are gone. But, this means I got to change properties into new ones every time I want to update installers.
Any idea why this happened & how to solve this? :confused:
