problem in VS2012 in the design mode

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good night i need help for this problem

i use this proyect (dll)
Custom ProgressBar Control[^]
he work perfectly in vs2010 (0 error,0warnings,etc)

but in the VS 2012 i get this errors.... (only in the design mode)

Message 3 Object of type 'System.Int32' cannot be converted to type 'System.Int16'.  0 0 

Message 8 The variable 'ProgBarPlus1' is either undeclared or was never assigned. C:\Users\carloseduardo\Documents\Visual Studio 2012\Projects\Proyecto FDT\nuevo FDT con bass.dll\Facilitador de Tareas\Facilitador de Tareas\Form1.Designer.vb 2139 0 

Message 9 Duplicate declaration of member 'ProgBarPlus1'  0 0 

Message 14 Duplicate declaration of member 'ProgBarPlus3'  0 0 


en System.ComponentModel.ReflectPropertyDescriptor.SetValue(Object component, Object value)
en System.ComponentModel.ReflectPropertyDescriptor.ResetValue(Object component)
en System.ComponentModel.Design.Serialization.CodeDomSerializer.ResetBrowsableProperties(Object instance)
en System.ComponentModel.Design.Serialization.CodeDomSerializer.Deserialize(IDesignerSerializationManager manager, Object codeObject)
en System.Windows.Forms.Design.ControlCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, Object codeObject)
en System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.DeserializeName(IDesignerSerializationManager manager, String name, CodeStatementCollection statement

:'( i need help if i compile he work perfectly ( im sure the error in the designer vs2012 is all fakes

Posted 24-Aug-12 10:17am

spiritdead

Updated 24-Aug-12 10:27am

Wendelius

v4

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2 solutions

Solution 1

With the first error, basically you're trying to convert a variable with larger precision to a variable with smaller precision which isn't allowed directly.

The other errors indicate a duplicate variable.

I would suggest either contacting the author of the article to resolve the problem in the code or to modify the code to get rid of the errors.

If you decide to solve it by yourself, then investigate the code from the article and try to pinpoint the location of the problem.

When you add that custom control to your form, the code in the custom control is ran so this is why you're facing the errors during the design time. To pinpoint the exact locatin, use the debugger and/or utilize the System.Diagnostics.Debug.WriteLine method to get more information from inside of the control.

Posted 24-Aug-12 10:33am

Wendelius

Comments

spiritdead 24-Aug-12 16:42pm

is rare :S because in the visual studio 2010 work perfectly and running perfect, but if i open the proyect in the visual studio 2012 i get this errors, i cant find the author for this reason i try fix but i need help :S

Wendelius 24-Aug-12 17:00pm

Try debugging the control. Most likely there's some breaking changes in VS 2012 if it works in VS 2010. It's good if you have also notified the author so he may have a response when he reads the comments concerning the code.

spiritdead 24-Aug-12 19:10pm

how to dedebug the control ?

Philippe Mori 24-Aug-12 18:03pm

Generally the designer is less buggy from one version to the next but in some cases it might not be the case. As mentionned by the author of this post, debugging the control will generally tells why the problem occurs.

Some other things to try is close all Visual Studio instance and try again. Sometimes it seems that VS get corrupt and restarting it will help.

By the way, one important thing is to check form (ort user control)constructor and load event handler if you are in design mode and skip any code that should not be executed in that case.

Wendelius 25-Aug-12 2:44am

Good points.

spiritdead 24-Aug-12 20:04pm

i send a msg in this post http://www.codeproject.com/Articles/26518/Custom-ProgressBar-Control ( but the author no see)...

and how to debug the control in the design for try detect the error

Wendelius 25-Aug-12 2:44am

The author of the article may or may not respond to the questions, that's purely up to him.

One way to perhaps more easily debug is that you don't place the control on the form while in design mode. Instead create the control in your code and set the properties that you have set on the designer. This way you can debug the control basically like normal code.

For user control debugging, see Walkthrough: Debugging Custom Windows Forms Controls at Design Time[^]

spiritdead 25-Aug-12 18:33pm

in vs2010 in a property "all" he enter in SET
but in vs2012 in the same property enter in GET :S

Wendelius 26-Aug-12 7:38am

The designer may call the property getters in different order in different versions of Visual Studio. So cuold the problem be that this property's getter isn't working correctly if the value hasn't been set

spiritdead 26-Aug-12 14:22pm

FINALLY I SOLVE THE PROBLEM, THX BY MSDN I UPLOAD THE SOLUTION IN THE AUTHOR WEB

Member 2497977 17-May-13 16:15pm

Hello Spiridead
How can you fixed this problem, I have the exact your problem.
thanks you

TeoMan 23-May-22 4:34am

I had the same error (Designer error reporting stack starting with System.ComponentModel.ReflectPropertyDescriptor.SetValue) and it is issued because I have a 64bit-only library that is used inside the custom control.
I solved using the "DesignMode" variable in the following way:

Original code:

private void uc_Resize(object sender, EventArgs e)
{
do something...
...
...
do something else with 64bit library types or functions
...
...
}

Solution:
private void uc_Resize(object sender, EventArgs e)
{
do something...
...
...
if (DesignMode)
return;
UpdateInnerSizes();
}

private void UpdateInnerSizes()
{
do something else with 64bit library types or functions
...
...
}

Only the "DesignerMode" return didnt solve the issue because it seams the designer tries to compile the single function and fails with 64bit library

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spiritdead · Accepted Answer · 2012-08-26T09:32:00

Solution 3

fix uploaded in the author link :) thx MSDN and SOftjaen for the fix

Posted 26-Aug-12 9:32am

spiritdead

Comments

Member 2497977 17-May-13 16:12pm

Hi Spiritdead , I have in the same your problem, how can you fixed this problem. could you send to me the solution.
thank you very much

spiritdead 31-May-13 13:13pm

go to post and find my comment you can see the link

http://www.mediafire.com/?6lf5pbh40ae0wma