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.NET Forum / Windows Forms / WinForm Controls / April 2005User Controls are dissapearing at designTime
I use a lot of user controls embedded in the project itself and often when I re-open a compiled project in VS.2003 I get an error message that one or more user controls are not found ( "Could not find type 'xyz'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built").Sometimes I can recover by rebuilding the project or solution, but not always, the effect being that the controls are simply dropped from the forms). On the toolbar the usercontrol exists and is available for use. This is most annoying, because I have to put the controls back on the form(s),etc. Has somebody an explanation of this behaviour and is there a way to avoid it or correct it? Thanks in advance. Roland Is the 'bin' directory shared by different projects? If you have a reference to an assembly in your project that has the 'Copy local' option set to True, when you delete this reference, Visual Studio deletes the file... Deleting the reference in a project may cause the file not to be available to the other projects in the same directory. > I use a lot of user controls embedded in the project itself and often when I > re-open a compiled project in VS.2003 I get an error message that one or [quoted text clipped - 8 lines] > is there a way to avoid it or correct it? Thanks in advance. > Roland Thanks for replying. No it's not the case. The user control is embedded in the project ( a class library) and another project in the solution (an exe) is consuming it. Both were last succesfully compiled by the commandline compiler. When I got the problem in the IDE, I could still run the exe accessing the dll and the user control was still intact. So it's definitely not the case. It is as if the reference in the project is not pointing anymore to binary . Roland > Is the 'bin' directory shared by different projects? > [quoted text clipped - 19 lines] > > is there a way to avoid it or correct it? Thanks in advance. > > Roland This always happens to me as well. In my experience it happens when you switch to/from Debug/Release mode. As a work around, I suggest you go into configuration manager and set all control projects to compile to debug when the project is in Release mode. You might do the reverse, setting all control projects to always compile to Release mode. As long as all control projects always compile to the same configuration for all project configurations. When it comes time to release, then go ahead and set things back to normal before your final compile. I do not know if taking similar precautions with the command line compiler will yield the same results. The quick fix is simply to close the designer and file of the form you are editing (with out saving), remove the control project from the references, and then re-add the project as a reference. Then compile once and reopen the form designer. > Thanks for replying. > No it's not the case. The user control is embedded in the project ( a class [quoted text clipped - 32 lines] > > > is there a way to avoid it or correct it? Thanks in advance. > > > Roland Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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