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We are using Visual Studio 2022 version 17.5.3
Our C# WINFORM projects use System.Data.SqlClient library to manipulate data but
All forms' design view have following error and not opened properly after update visual studio
Unable to cast object of type 'System.Data.SqlClient.SqlCommand' to type 'Microsoft.Data.SqlClient.SqlCommand'.
But project can be complied and worked without any issue though.
Also, I attached screenshot of empty winform project. (C# winform .net 4.6.1)
I added components SqlConnection, SqlCommand, SqlDataAdapter from SqlClient.Data.SqlClient to toolbox.
Error message pops up when I add any of them to design view of form.
But these errors are not occurred with Visual Studio 2019.
Untitled-3.jpg
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Hello, the issue is fixed in version 17.5.5. Please update your VS2022 with the Visual Studio Installer.
Answer accepted by question author
Hi @Gilbert Seong ,
Welcome to Microsoft Q&A!
I could reproduce your issue on my side and found the same feedback from other community users:
It seems be a known issue. You can also vote it and add your comment there to track the process.
If there are any updates, I will sync here.
Sincerely,
Anna
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