VB.Net, How to... With inherited control

How to... With inherited control

Author	Message
Miguel Santo #1 / 3	How to... With inherited control I'm building a test app in vb.net. Due to the lack of rebar support, I decided to temporarily do it with an inherited panel, one that draws the rebar look. So I created a panel using the IDE, all fine. Next I created a class to inherit the panel, doing this: Public Class PanelEx Inherits Panel Protected Overrides Sub OnPaint(ByVal e As System.WinForms.PaintEventArgs) MyBase.OnPaint(e) ...... 'Boring Drawing Stuff ...... End Sub End Class Then I replaced the System.Winforms.Panel with PanelEx on the form code. I run the project, all works as expected, but if I reopen the form in design mode, I get: "An error occured while loading the document. Fix the error, and then try to load the document again. The error message follows: Could not create the component 'Panel1' because the type 'PanelEx' could not be loaded. Please make sure that the assembly that contains the type is referenced. If this type is a part of your development project, make sure that the project has been successfully built." Any hints as to what I'm doing wrong? Is this a bug in Beta1? Best Regards, Miguel Santos
Sat, 31 May 2003 10:10:29 GMT

Matthew Stoecke #2 / 3	How to... With inherited control Did you build your project? Matthew Stoecker Quote: > I'm building a test app in vb.net. > Due to the lack of rebar support, I decided to temporarily do it with an > inherited panel, one that draws the rebar look. > So I created a panel using the IDE, all fine. > Next I created a class to inherit the panel, doing this: > Public Class PanelEx > Inherits Panel > Protected Overrides Sub OnPaint(ByVal e As > System.WinForms.PaintEventArgs) > MyBase.OnPaint(e) > ...... > 'Boring Drawing Stuff > ...... > End Sub > End Class > Then I replaced the System.Winforms.Panel with PanelEx on the form code. I > run the project, all works as expected, but if I reopen the form in design > mode, I get: > "An error occured while loading the document. Fix the error, and then try to > load the document again. The error message follows: > Could not create the component 'Panel1' because the type 'PanelEx' could not > be loaded. Please make sure that the assembly that contains the type is > referenced. If this type is a part of your development project, make sure > that the project has been successfully built." > Any hints as to what I'm doing wrong? Is this a bug in Beta1? > Best Regards, > Miguel Santos
Mon, 02 Jun 2003 00:11:48 GMT

Miguel Santo #3 / 3	How to... With inherited control Hi Matthew. Yes, I did build the project. I also tried packaging it in a different dll/assembly/whatever, and then it does work, but I'm expecting to inherit control in different ways according to projects, and would end up with hundreds of dlls, so I was expecting to put the inherited control in the same project as the form that uses it. May I remind that running the project does work, it's just the form designer that gives this error. Best Regards, Miguel Santos Quote: >Did you build your project? >Matthew Stoecker >> I'm building a test app in vb.net. >> Due to the lack of rebar support, I decided to temporarily do it with an >> inherited panel, one that draws the rebar look. >> So I created a panel using the IDE, all fine. >> Next I created a class to inherit the panel, doing this: >> Public Class PanelEx >> Inherits Panel >> Protected Overrides Sub OnPaint(ByVal e As >> System.WinForms.PaintEventArgs) >> MyBase.OnPaint(e) >> ...... >> 'Boring Drawing Stuff >> ...... >> End Sub >> End Class >> Then I replaced the System.Winforms.Panel with PanelEx on the form code. I >> run the project, all works as expected, but if I reopen the form in design >> mode, I get: >> "An error occured while loading the document. Fix the error, and then try >to >> load the document again. The error message follows: >> Could not create the component 'Panel1' because the type 'PanelEx' could >not >> be loaded. Please make sure that the assembly that contains the type is >> referenced. If this type is a part of your development project, make sure >> that the project has been successfully built." >> Any hints as to what I'm doing wrong? Is this a bug in Beta1? >> Best Regards, >> Miguel Santos
Mon, 02 Jun 2003 00:31:45 GMT

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