Cannot see radform in add new items vs 2017

A classic issue!

In Visual Studio 2017, the RadForm control is not available in the Toolbox by default. This is because the RadForm control is part of the Telerik UI for WinForms suite, which is a separate product from the standard.NET Framework.

To add the RadForm control to your Toolbox in Visual Studio 2017, you'll need to follow these steps:

1. Install the Telerik UI for WinForms:
   • Go to the Telerik website and download the Telerik UI for WinForms installer.
   • Run the installer and follow the prompts to install the product.
2. Register the Telerik controls:
   • After installation, you'll need to register the Telerik controls in Visual Studio.
   • Open Visual Studio, go to Tools > Options, and then navigate to Environment > Extensions and Updates.
   • Click on the Browse button and select the Telerik.WinControls.dll file from the installation directory (usually C:\Program Files (x86)\Telerik\UI for WinForms [version]\Bin).
   • Click OK to register the controls.
3. Add the RadForm control to the Toolbox:
   • Open your project in Visual Studio and go to the Toolbox.
   • Right-click inside the Toolbox and select Choose Items.
   • In the Choose Toolbox Items dialog, navigate to the Telerik.WinControls folder and select the RadForm control.
   • Click OK to add the control to the Toolbox.

Once you've completed these steps, you should be able to see the RadForm control in your Toolbox and add it to your project.

If you're still having issues, make sure that you've installed the correct version of Telerik UI for WinForms that matches your.NET Framework version.