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I have a Visual Studio 2010 Windows Forms app which includes a Form base class that other classes will inherit. The base class' constructor takes a parameter that the child classes will pass to the base class. Example: public partial class BaseForm : Form { public BaseForm(int number) { InitializeComponent(); } } public partial class ChildForm : BaseForm { public ChildForm(int number) : base(number) { InitializeComponent(); } } The problem that I'm running into is, when I attempt to open the ChildForm in VisualStudio's Design View mode, I receive the following error: Constructor on type 'MyProject.BaseForm' not found. Note: regardless of the error, the project compiles and runs fine. I can avoid the error if I overload the constructor with one that does not contain any parameters. Example: (This gets rid of the error) public partial class BaseForm : Form { public BaseForm(int number) { InitializeComponent(); } public BaseForm() { InitializeComponent(); } } public partial class ChildForm : BaseForm { public ChildForm(int number) : base(number) { InitializeComponent(); } } My question is, how can I create a base class that does not include a parameterless constructor and avoid the Design View error?

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