Object Reference not set to an instance of an object

NewToDotNet

I am getting "Object reference not set to an instance of an object. " when I
attempt to open a C# windows service class in design view, although I was
able to initially create the service and open in design view. This happens
once I restarted Visual Studio adn opened teh solution

Any ideas on how to fix this would be appreciated..

BR
::Ben

Jul 21 '05 #1

Subscribe Reply

7145

Chris, Master of All Things Insignificant

Do you see the object that it is complaining about.

Dim C as ClassA
C.SomeProperty = 12345 <--- Error: Object reference not set to an instance
of an object.

Dim C as New ClassA
C.SomeProperty = 12345 <--- Happy!

So find out what object it is complaining about and assign it an instance of
the object.

Hope this helps
Chris

"NewToDotNe t" <Ne*********@di scussions.micro soft.com> wrote in message
news:37******** *************** ***********@mic rosoft.com...

I am getting "Object reference not set to an instance of an object. " when
I
attempt to open a C# windows service class in design view, although I was
able to initially create the service and open in design view. This happens
once I restarted Visual Studio adn opened teh solution

Any ideas on how to fix this would be appreciated..

BR
::Ben

Jul 21 '05 #2

NewToDotNet

Chris

It does not show me the object;
------------start of error
One or more errors encountered while loading the designer.The errors are
listed below. Some errors can be fixed by rebuilding your project, while
others may require code changes. Clicking on each error will take you to the
line of code that caused it.

Object reference not set to an instance of an object.

Hide
Edit
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.AddToolboxI tem(IVsHierarch y
hierarchy, String typeName, Type loadedType, String category, String
referencePath, ToolboxItemFilt erAttribute projectFilter,
ToolboxItemFilt erAttribute itemFilter)
at
Microsoft.Visua lStudio.Design. Toolbox.Project AutoToolboxMana ger.UpdateToolb oxItems(Boolean updateRefs, Boolean updateBuild)
at
Microsoft.Visua lStudio.Design. Toolbox.Project AutoToolboxMana ger..ctor(AutoT oolboxManagerSe rvice
ownerService, IServiceProvide r provider, IVsHierarchy hierarchy, Boolean&
keepMe)
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.GetAutoTool boxManager(Obje ct vsHierarchy)
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.GetAutoTool boxManagerFromH ost(IDesignerHo st host)
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.OnDesignerL oadComplete(Obj ect sender, EventArgs e)
at System.EventHan dler.Invoke(Obj ect sender, EventArgs e)
at System.Componen tModel.Design.D esignerHost.OnL oadComplete(Eve ntArgs e)
at
System.Componen tModel.Design.D esignerHost.Sys tem.ComponentMo del.Design.Seri alization.IDesi gnerLoaderHost. EndLoad(String
rootClassName, Boolean successful, ICollection errorCollection )
at
System.Componen tModel.Design.S erialization.Ba sicDesignerLoad er.OnEndLoad(Bo olean successful, ICollection errors)
at
System.Componen tModel.Design.S erialization.Co deDomDesignerLo ader.OnEndLoad( Boolean successful, ICollection errors)
at
System.Componen tModel.Design.S erialization.Ba sicDesignerLoad er.System.Compo nentModel.Desig n.Serialization .IDesignerLoade rService.Depend entLoadComplete (Boolean successful, ICollection errorCollection )
at
System.Componen tModel.Design.S erialization.Ba sicDesignerLoad er.BeginLoad(ID esignerLoaderHo st host)
at System.Componen tModel.Design.D esignerHost.Beg inLoad(Designer Loader loader)
---end of error message---
"Chris, Master of All Things Insignifican" wrote:

Do you see the object that it is complaining about.

Dim C as ClassA
C.SomeProperty = 12345 <--- Error: Object reference not set to an instance
of an object.

Dim C as New ClassA
C.SomeProperty = 12345 <--- Happy!

So find out what object it is complaining about and assign it an instance of
the object.

Hope this helps
Chris

"NewToDotNe t" <Ne*********@di scussions.micro soft.com> wrote in message
news:37******** *************** ***********@mic rosoft.com...
I am getting "Object reference not set to an instance of an object. " when
I
attempt to open a C# windows service class in design view, although I was
able to initially create the service and open in design view. This happens
once I restarted Visual Studio adn opened teh solution

Any ideas on how to fix this would be appreciated..

BR
::Ben

Jul 21 '05 #3

Chris, Master of All Things Insignificant

Have you modified any code in the section that is usually commented out by
the Windows Designer. I haven't played much with windows services so I
don't remember what the template looks like, but what this is telling you is
that a change was made where the designer usually plays.

Sorry I can't be more helpful.
Chris
"NewToDotNe t" <Ne*********@di scussions.micro soft.com> wrote in message
news:9E******** *************** ***********@mic rosoft.com...

Chris

It does not show me the object;
------------start of error
One or more errors encountered while loading the designer.The errors are
listed below. Some errors can be fixed by rebuilding your project, while
others may require code changes. Clicking on each error will take you to
the
line of code that caused it.

Object reference not set to an instance of an object.

Hide
Edit
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.AddToolboxI tem(IVsHierarch y
hierarchy, String typeName, Type loadedType, String category, String
referencePath, ToolboxItemFilt erAttribute projectFilter,
ToolboxItemFilt erAttribute itemFilter)
at
Microsoft.Visua lStudio.Design. Toolbox.Project AutoToolboxMana ger.UpdateToolb oxItems(Boolean
updateRefs, Boolean updateBuild)
at
Microsoft.Visua lStudio.Design. Toolbox.Project AutoToolboxMana ger..ctor(AutoT oolboxManagerSe rvice
ownerService, IServiceProvide r provider, IVsHierarchy hierarchy, Boolean&
keepMe)
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.GetAutoTool boxManager(Obje ct
vsHierarchy)
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.GetAutoTool boxManagerFromH ost(IDesignerHo st
host)
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.OnDesignerL oadComplete(Obj ect
sender, EventArgs e)
at System.EventHan dler.Invoke(Obj ect sender, EventArgs e)
at System.Componen tModel.Design.D esignerHost.OnL oadComplete(Eve ntArgs e)
at
System.Componen tModel.Design.D esignerHost.Sys tem.ComponentMo del.Design.Seri alization.IDesi gnerLoaderHost. EndLoad(String
rootClassName, Boolean successful, ICollection errorCollection )
at
System.Componen tModel.Design.S erialization.Ba sicDesignerLoad er.OnEndLoad(Bo olean
successful, ICollection errors)
at
System.Componen tModel.Design.S erialization.Co deDomDesignerLo ader.OnEndLoad( Boolean
successful, ICollection errors)
at
System.Componen tModel.Design.S erialization.Ba sicDesignerLoad er.System.Compo nentModel.Desig n.Serialization .IDesignerLoade rService.Depend entLoadComplete (Boolean
successful, ICollection errorCollection )
at
System.Componen tModel.Design.S erialization.Ba sicDesignerLoad er.BeginLoad(ID esignerLoaderHo st
host)
at System.Componen tModel.Design.D esignerHost.Beg inLoad(Designer Loader
loader)
---end of error message---
"Chris, Master of All Things Insignifican" wrote:
Do you see the object that it is complaining about.

Dim C as ClassA
C.SomeProperty = 12345 <--- Error: Object reference not set to an
instance
of an object.

Dim C as New ClassA
C.SomeProperty = 12345 <--- Happy!

So find out what object it is complaining about and assign it an instance
of
the object.

Hope this helps
Chris

"NewToDotNe t" <Ne*********@di scussions.micro soft.com> wrote in message
news:37******** *************** ***********@mic rosoft.com...
>I am getting "Object reference not set to an instance of an object. "
>when
>I
> attempt to open a C# windows service class in design view, although I
> was
> able to initially create the service and open in design view. This
> happens
> once I restarted Visual Studio adn opened teh solution
>
> Any ideas on how to fix this would be appreciated..
>
> BR
> ::Ben

Jul 21 '05 #4

NewToDotNet

Chris

Thanks for loking into this..I really do appreciate the effort.

As far as I know I have not made any changes to the designer code..

Ben

"Chris, Master of All Things Insignifican" wrote:

Have you modified any code in the section that is usually commented out by
the Windows Designer. I haven't played much with windows services so I
don't remember what the template looks like, but what this is telling you is
that a change was made where the designer usually plays.

Sorry I can't be more helpful.
Chris
"NewToDotNe t" <Ne*********@di scussions.micro soft.com> wrote in message
news:9E******** *************** ***********@mic rosoft.com...
Chris

It does not show me the object;
------------start of error
One or more errors encountered while loading the designer.The errors are
listed below. Some errors can be fixed by rebuilding your project, while
others may require code changes. Clicking on each error will take you to
the
line of code that caused it.

Object reference not set to an instance of an object.

Hide
Edit
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.AddToolboxI tem(IVsHierarch y
hierarchy, String typeName, Type loadedType, String category, String
referencePath, ToolboxItemFilt erAttribute projectFilter,
ToolboxItemFilt erAttribute itemFilter)
at
Microsoft.Visua lStudio.Design. Toolbox.Project AutoToolboxMana ger.UpdateToolb oxItems(Boolean
updateRefs, Boolean updateBuild)
at
Microsoft.Visua lStudio.Design. Toolbox.Project AutoToolboxMana ger..ctor(AutoT oolboxManagerSe rvice
ownerService, IServiceProvide r provider, IVsHierarchy hierarchy, Boolean&
keepMe)
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.GetAutoTool boxManager(Obje ct
vsHierarchy)
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.GetAutoTool boxManagerFromH ost(IDesignerHo st
host)
at
Microsoft.Visua lStudio.Design. Toolbox.AutoToo lboxManagerServ ice.OnDesignerL oadComplete(Obj ect
sender, EventArgs e)
at System.EventHan dler.Invoke(Obj ect sender, EventArgs e)
at System.Componen tModel.Design.D esignerHost.OnL oadComplete(Eve ntArgs e)
at
System.Componen tModel.Design.D esignerHost.Sys tem.ComponentMo del.Design.Seri alization.IDesi gnerLoaderHost. EndLoad(String
rootClassName, Boolean successful, ICollection errorCollection )
at
System.Componen tModel.Design.S erialization.Ba sicDesignerLoad er.OnEndLoad(Bo olean
successful, ICollection errors)
at
System.Componen tModel.Design.S erialization.Co deDomDesignerLo ader.OnEndLoad( Boolean
successful, ICollection errors)
at
System.Componen tModel.Design.S erialization.Ba sicDesignerLoad er.System.Compo nentModel.Desig n.Serialization .IDesignerLoade rService.Depend entLoadComplete (Boolean
successful, ICollection errorCollection )
at
System.Componen tModel.Design.S erialization.Ba sicDesignerLoad er.BeginLoad(ID esignerLoaderHo st
host)
at System.Componen tModel.Design.D esignerHost.Beg inLoad(Designer Loader
loader)
---end of error message---
"Chris, Master of All Things Insignifican" wrote:
Do you see the object that it is complaining about.

Dim C as ClassA
C.SomeProperty = 12345 <--- Error: Object reference not set to an
instance
of an object.

Dim C as New ClassA
C.SomeProperty = 12345 <--- Happy!

So find out what object it is complaining about and assign it an instance
of
the object.

Hope this helps
Chris

"NewToDotNe t" <Ne*********@di scussions.micro soft.com> wrote in message
news:37******** *************** ***********@mic rosoft.com...
>I am getting "Object reference not set to an instance of an object. "
>when
>I
> attempt to open a C# windows service class in design view, although I
> was
> able to initially create the service and open in design view. This
> happens
> once I restarted Visual Studio adn opened teh solution
>
> Any ideas on how to fix this would be appreciated..
>
> BR
> ::Ben

Jul 21 '05 #5

susan.entwisle

NewToDotNet wrote:

I am getting "Object reference not set to an instance of an object. " when I attempt to open a C# windows service class in design view, although I was able to initially create the service and open in design view. This happens once I restarted Visual Studio adn opened teh solution

Any ideas on how to fix this would be appreciated..

BR
::Ben

Jul 21 '05 #6

Andrew

I am experiencing the exact same thing with the Dec 2004 beta release.
Any resolution to this yet?

su************@ eds.com wrote:

NewToDotNet wrote:
I am getting "Object reference not set to an instance of an object.
" when I
attempt to open a C# windows service class in design view, although
I was
able to initially create the service and open in design view. This

happens
once I restarted Visual Studio adn opened teh solution

Any ideas on how to fix this would be appreciated..

BR
::Ben

Jul 21 '05 #7

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