topic ActiveX Control Error in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/activex-control-error/m-p/306245#M7963 <HTML><HEAD></HEAD><BODY><SPAN>The error I'm referring to: â??â?¦ threw an exception of type 'System.Windows.Forms.AxHost.InvalidActiveXStateException'â??</SPAN><BR /><BR /><SPAN>I have the ArcDesktop version 10.0 and the .Net SDK version 10.0 installed on my machine. I'm trying to use ArcEngine controls embedded in WPF to display the Map Control. I found out that if the controls are embedded in a page that is called via the NavigationService in the WPF application, the error gets shown immediately and the application doesn't even compile. I then went through the examples I found online and pulled the page out of the application and made it a window. That seemed to work. I then got a blank window. I traced through the code and found out that when the application got to the controls in the code behind that it skipped right over them. I then actually stepped into the LoadMxFile Control and found out that the error is coming up everywhere along with licensing errors even though I bind to EngineOrDesktop in the App.xaml file. I have used Google and searched quite a bit, but I have found no answers to my problem. I've tried using .Net Framework 3.5, 4.0, 4.5 and still get the same error. I'm attaching the test project that I have been working with.</SPAN><BR /><BR /><SPAN>Is there anyone out there that can help, or has at least seen this issue before?</SPAN><BR /><BR /><SPAN>Howard</SPAN></BODY></HTML> Fri, 01 Mar 2013 12:03:11 GMT HowardNaulty 2013-03-01T12:03:11Z ActiveX Control Error https://community.esri.com/t5/arcobjects-sdk-questions/activex-control-error/m-p/306245#M7963 <HTML><HEAD></HEAD><BODY><SPAN>The error I'm referring to: â??â?¦ threw an exception of type 'System.Windows.Forms.AxHost.InvalidActiveXStateException'â??</SPAN><BR /><BR /><SPAN>I have the ArcDesktop version 10.0 and the .Net SDK version 10.0 installed on my machine. I'm trying to use ArcEngine controls embedded in WPF to display the Map Control. I found out that if the controls are embedded in a page that is called via the NavigationService in the WPF application, the error gets shown immediately and the application doesn't even compile. I then went through the examples I found online and pulled the page out of the application and made it a window. That seemed to work. I then got a blank window. I traced through the code and found out that when the application got to the controls in the code behind that it skipped right over them. I then actually stepped into the LoadMxFile Control and found out that the error is coming up everywhere along with licensing errors even though I bind to EngineOrDesktop in the App.xaml file. I have used Google and searched quite a bit, but I have found no answers to my problem. I've tried using .Net Framework 3.5, 4.0, 4.5 and still get the same error. I'm attaching the test project that I have been working with.</SPAN><BR /><BR /><SPAN>Is there anyone out there that can help, or has at least seen this issue before?</SPAN><BR /><BR /><SPAN>Howard</SPAN></BODY></HTML> Fri, 01 Mar 2013 12:03:11 GMT https://community.esri.com/t5/arcobjects-sdk-questions/activex-control-error/m-p/306245#M7963 HowardNaulty 2013-03-01T12:03:11Z