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

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Hi all
I have a problem with Visual studio 2012 with an error (Object of type 'System.Int32' cannot be converted to type 'System.Int16')
My class lib Button was create in VS 2010 with framework 4.0, It work fine in VS 2010, but when I installed Vs 2012 framWork 4.5, I have an error message (Object of type 'System.Int32' cannot be converted to type 'System.Int16') when I open the Form design.
thank you

Posted 15-May-13 3:31am

Member 2497977

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Mohammed Hameed 15-May-13 9:38am

It should not have any impact when you upgrade to .NET 4.5.
Anyhow, can you send the complete stack trace and also the piece of code on which this exception occurs.

lewax00 15-May-13 9:57am

You asked this yesterday, and I'll tell you the same thing I told you then: we can't help you without seeing the line causing the error. You can re-ask the question all you want, but without the relevant details, no one can help you.

Member 2497977 15-May-13 10:25am

HiI didn't upgrade my application from VS 2010 to VS 2012, only I installed VS 2012 in my computer for the new project. when I opened my old application in VS 2010 , I have this error.
thanks

Member 2497977 15-May-13 10:28am

sorry, I like to load error image but i don't known. how can I load my error image in forum?

Sergey Alexandrovich Kryukov 15-May-13 10:42am

Don't do it. Copy relevant text and paste it. Text only, please.
—SA

Member 2497977 15-May-13 10:58am

Hi all
there are the errors when I open the form.
To prevent possible data loss before loading the designer, the following errors must be resolved:

173 Errors

Ignore and Continue
Why am I seeing this page?

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

Instances of this error (87)

1. Hide Call Stack

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

2. Show Call Stack

at System.ComponentModel.ReflectPropertyDescriptor.SetValue(Object component, Object value)
at System.ComponentModel.ReflectPropertyDescriptor.ResetValue(Object component)
at System.ComponentModel.Design.Serialization.CodeDomSerializer.ResetBrowsableProperties(Object instance)
at System.ComponentModel.Design.Serialization.CodeDomSerializer.Deserialize(IDesignerSerializationManager manager, Object codeObject)
at System.Windows.Forms.Design.ControlCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, Object codeObject)
at System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.DeserializeName(IDesignerSerializationManager manager, String name, CodeStatementCollection statements)
3. Show Call Stack
..............

Richard C Bishop 15-May-13 14:21pm

I cannot think of the proper term, but I believe it stems from attempting to cast a larger container into a smaller one. Such as int32 to int16.

lewax00 15-May-13 14:25pm

Alright, you seem to have missed the point: we need the line of code it occurs on. The error should mention a line number, or if it shows up in the "Error List" tab, you can just double click it and it will take you to the line the error is occurring on. Add that line to your question (and maybe the whole class or function it's in) using the "Improve question" button. Then we might be able to figure out what's wrong.

Member 2497977 17-May-13 9:16am

Hi Richcb, I think in the same your ideal, but this class lib button have been worked fine in 4 years with VS2005, VS2008 and VS2010. but the class lib button doesn't work in VS2012(FrameWork 4.5).
thank

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Shahan Ayyub · Answer 1 · 2013-05-15T08:13:00

Solution 1

As per the provided details, my guess is that the application that is written in a different framework is trying to be adjustable with some different framework WITHOUT allowing it to do a proper conversion.

Not sure if it really helps, but just give a quick test and follow the below steps and see if it resolves your issue:

1) Goto menu, Project-> <project name=""> Properties
2) Goto "Application" Tab
3) Find "Target Framework"
4) Set it to Framework 4.0 (it is expected to be 4.5, after your installation of VS2012)
5) A popup will be shown which will prompt you about a restart of the Project, allow it.

Hope it helps!

Posted 15-May-13 8:13am

Shahan Ayyub

Updated 15-May-13 8:19am

v2

Comments

Member 2497977 15-May-13 17:06pm

Hi
Our application in the VSS, I don't modify the framwork, in the project property is FrameWork 4.0. the project is readonly.I don't use framework 4.5 in VS 2010.
I think framework 4.5 is not compatible with framework 4.0. When I installed framework 4.5, it copy in the same directory framework 4.0 (C:\Windows\Microsoft.NET\Framework64\v4.0.30319)
I modified to framework 4.0 in VS 2010, it doesn't work too.
1/when I removed framework 4.5 then the application is work fine but the VS 2012 has an error message (the operation can not completed). I cannot open VS2012.
2/when I installed Framework 4.5 then the VS 2012 is work fine, but my application has ann error.
thank you for your help

Shahan Ayyub 18-May-13 6:54am

can you send the snap shot of the error screen ?