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"Method not found Void" exception when debugging form with sfcombobox

Hi all,

I am really a newbie in syncfusion so probably I miss something....

I am developing an excel vsto addin with VS2019 (code is really basic, I'm not a developer) and I'm trying to insert a sfComboBox in a form. In debugging mode when I call the form it throw this exception:


System.MissingMethodException

  HResult=0x80131513

  Message=Method not found: 'Void Syncfusion.WinForms.ListView.SfComboBox.set_DropDownPosition(Syncfusion.WinForms.Core.Enums.PopupRelativeAlignment)'.

  Source=<Cannot evaluate the exception source>

  StackTrace:

<Cannot evaluate the exception stack trace>



Any ideas?


Thank you




5 Replies
EM Elakkiya Muthukumarasamy Syncfusion Team October 22, 2021 11:40 AM UTC

Hi Emanuele, 

Greetings from Syncfusion. 

We have checked your query and we suspect that you are trying to use SfComboBox control in a VSTO AddIn with VS2019.We have prepared the sample to load SFComboBox after the VSTO AddIn. But we could not reproduce the reported exception at our end. Please refer the sample and video for the same. 



Please check the above sample and video and confirm us our replication is same as yours. If not please modify the sample as issue reproduceable it will be helpful to check and update the prompt solution on this. 

Regards, 
Elakkiya 


ES Emanuele Scott October 27, 2021 08:52 AM UTC

Hi Elakkiya,

Thanks for you answer...

basically the setup is similar to those used in the video you linked, except that I'm using VB.NET and the Excel version is 2016.

I tried to load and build the test project you sent but VS can't import the .pfx file because it is password protected.


[edit]

I created a brand new VB VSTO addin project that load a form with a sfcomboBox inside,


attached you can find a video and teh addin code.




ES Emanuele Scott October 27, 2021 08:58 AM UTC

attached you can find a video and teh addin code.


Attachment: test_ComboBox_462456a6.zip

ES Emanuele Scott October 27, 2021 08:58 AM UTC

attached you can find a video and teh addin code.


Attachment: test_SfCombo2_615d9c1d.zip

EM Elakkiya Muthukumarasamy Syncfusion Team October 29, 2021 01:59 AM UTC

Hi Emanuele, 

Thanks for your update. 

We have checked your query and we would like to let you know that to import the .pfx file need to create new certificate in singing option(Need to add password).Please refer the below screen shot 

 

We have checked the reported issue with your provided sample and video, but we could not reproduce the reported exception at our end.The provided sample working fine and not throw any exception. Please refer the attached screen for the same  

Screen shot: 
 

To avoid further delay we can arrange a web meeting to check this issue at your end . We request you to provide your availability time. So, that we can check and arrange the meeting accordingly. 

Regards, 
Elakkiya 


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