close form1 & open form2

I used two forms in my windows application tha开发者_开发技巧t they aren't my main form. Now I want to close form1 and open form2. How to I do this. Thanx.

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Take a look at Hiding and Showing Forms for a good example of various techniques.

Major points include:

• Creating a C# Application Containing Multiple Forms
• Understanding Modal and Non-modal Forms
• Writing C# Code to Display a Non-Modal Form
• Writing C# Code to Display a Modal Form
• Hiding Forms in C#
• Closing Forms in C#

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I did this once for my project, to close one application and open another application.

    System.Threading.Thread newThread;
    Form1 frmNewForm = new Form1;

   newThread = new System.Threading.Thread(new System.Threading.ThreadStart(frmNewFormThread));
this.Close();
        newThread.SetApartmentState(System.Threading.ApartmentState.STA);
        newThread.Start();

And add the following Method. Your newThread.Start will call this method.

    public void frmNewFormThread)()
    {

        Application.Run(frmNewForm);

    }