I have a UserControl that provides some functionality (loads and displays a client’s information) and I want to extend that UserControl. Some forms require the plain old UserControl while other forms will require some additional fields. How can I inherit from the existing UserControl, maintain the existing fields but add new fields on as well?
I like the way MasterPages work, where you define place holders, and then the content pages just fill those places holders with extra content. Is this possible with UserControls? Thanks!
I ended using nested MasterPages as my UserControls (as they inherit from UserControl anyway). Then I just call this.LoadControl(“~/mp.master”) and voila, I have nested UserControls with full design-time support. 🙂