Question

Please help me to fix this error:

Cannot implicitly convert type ‘object’ to ‘System.Reflection.Assembly’. An explicit conversion exists (are you missing a cast?)

Thank you!!!

CODE

var assemblyName = AssemblyName.GetAssemblyName(assemblyPath);

var ads = new AppDomainSetup
               {
                  ApplicationBase = AppDomain.CurrentDomain.SetupInformation.ApplicationBase, 
                  DisallowCodeDownload = true 
               };

AppDomain newDomainName = AppDomain.CreateDomain("newDomainName", null, ads);

Assembly testLibrary = newDomainName.CreateInstanceAndUnwrap(assemblyName.Name,
                      typeof(System.Windows.Controls.UserControl).Name);  // Here the error occures

Answer 1

CreateInstanceAndUnwrap returns an instance of the created type (System.Windows.Controls.UserControl in the code above), not an Assembly. The code should be:

UserControl userControl = (UserControl) newDomainName.CreateInstanceAndUnwrap(
    assemblyName.Name, typeof(System.Windows.Controls.UserControl).Name);