[SOLVED] RibbonBar Error: Cannot create an abstract class

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Hi,

I tried recreating my problematic form/page that contains a ribbonbar, but the problem now I received an error everytime I create a new item please see attached image.

 

Thanks.

Attachment
wisej2 error in ribbon bsar.png
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This issue was logged as #1941 and will be fixed in the next release of Wisej!

If you need it now, you can download the patched extension from https://github.com/iceteagroup/wisej-extensions/tree/2.0/Wisej.Web.Ext.RibbonBar

Best regards,

Levie

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Glenn,

#1941 is fixed in the latest Wisej release (2.0.36)

Best regards
Frank

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This issue is fixed in the latest dev build (2.0.35).  You can get it from wisej.com/builds. Let me know if it works for you!

Best,

Levie

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Hi Glenn,

As another (temporary) workaround, you can add the Framework.Design.dll reference to your project, assuming it’s not already in there! Build the solution, and restart VS.

Let me know if this works for you.

Best regards,

Levie

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Hi Glenn,

Still looking into this.  I was not able to replicate the issue either.

For now, you can modify the RibbonBar through the designer code of the form if the property editor and “fast” editor are not working for you.  I am attaching your project with some RibbonBarItems you can use it as a template.  You can use Luca’s screenshot of the different types of RibbonBarItems if you need the names of the other options.

Let me know if this works for you.

Best regards,

Levie

Attachment
WisejWebDesktopApplication1 2.zip
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Hi,

 

Is there any other way to manage the items in ribbonbar, than waiting this to be fixed? I hope to hear from you soon.

Thanks.

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Any update on this?

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Hi,

One thing I have noticed the menu editor has dropdown button when I tried to edit the items, please see attached picture. I hope this will isolate some issues and I can continue to work with our project already.

 

Thanks.

Attachment
wisej2 menuitem editor has dropdown.png
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I have already downloaded and installed the latest version 2.0.32

  • Frank (ITG)
    Does it only happen when you are using the “fast editor” that can be used when you drop the control ? What happens if you close the form, reopen it and go through the property editor ? Regards, Frank
  • Frank (ITG)
    Also please try deleting c:\users\\AppData\Local\Temp\Wisej 2\IDE and see if that makes a difference.
  • Glenn Gonzales
    It’s the same, be it through property editor or “fast editor”.
  • Glenn Gonzales
    I have also deleted that folder the problem still persist.
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Hi,

Any update on this? Hope to hear from you soon.

 

Thanks.

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I am attaching a video

Attachment
CannotCreateAbstractClass.zip
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Thanks Glenn.

However I could not yet reproduce the error here.
Can you please describe the steps until where it fails ?

Best regards
Frank

  • Glenn Gonzales
    1. Create Project (standard step) 2. Open my window form 3. Goto toolbar, lookup for Ribonbar 4. Drop the ribbon bar onto the form 5. Added a Page 6. Then I add a group under the created page 7. I click Items 8 Ribbon bar item collection dialog shows 9. There are 2 buttons there, add and remove the add button supposedly shows a dropdown icon, but in my case, it shows a plain button 10. When I click that button, it displays cannot create abstract class…. Hope that helps.
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Please see attached project.

Attachment
WisejWebDesktopApplication1.zip
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Please see sample project.

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I also tried creating a new project, drop the ribbonbar control from toolbox, then created some pages, then groups, but the same issue when I reached to creating item , please see attached screenshot.

 

Thank you.

Attachment
Wisej 2 Issue in Ribbonbar1.png
  • Frank (ITG)
    Can you please attach your project ? TIA, Frank
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Hi,

I have installed a new VM, and VS 2019, then Wisej 2.0.28, and tried to open your sample project Ribbonbar from wise-examples-2.0, but it’s the same issue, please see attached screenshot.

 

Hope this can be resolved.

 

Thanks.

Attachment
Wisej 2 Issue in Ribbonbar.png
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So how can I correct it? I already uninstall/install, but same problem.

  • Luca (ITG)
    You must have the wrong reference to 1.5 in the project. The drop down you see in my screenshot is part of Visual Studio designer and loads all the types derived from the base type of the collection. In your images it fails and the most likely reason is that it cannot load the assembly.
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Something is wrong in your installation or Wisej versions are mixed. The collection dialog should have a drop down button and show all the ribbon item types. see attached screenshot

Attachment
image.png
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