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.NET Forum / Languages / C# / August 2006C# form close problem
Hi, In my C# windows form project, how do I in a formA open another formB, and close formA when formB is opened? Thanks for help. Jason Hi Jason, You are probably better off having formA and formB share a common parent responsible for the message loop. If formA is started from Main, have Main start both forms. Pass properties to formB via Main. What are you trying to do? > Hi, > [quoted text clipped - 4 lines] > > Jason  SignatureHappy Coding! Morten Wennevik [C# MVP] You can do so using Show and Close method of the Form. Let us suppose that you have 3 forms, Form1 (the main form), Form2 and Form3. From Form2, if you want to open Form3 and close Form2, you can use the following code: Form3 f3 = new Form3(); f3.Show(); // Opens the Form3 this.Close(); // Closes the current form (Form2) If you close Form1 (which might be the main form), the entire application will close. SignatureNand Kishore Gupta > Hi, > [quoted text clipped - 3 lines] > > Jason > You can do so using Show and Close method of the Form. Let us suppose > that [quoted text clipped - 10 lines] > If you close Form1 (which might be the main form), the entire application > will close. Not if you fire up another Form in your Main method Application.Run(new Form1()); Application.Run(new Form2()); // will start when Form1 ends SignatureHappy Coding! Morten Wennevik [C# MVP] Not sure you want to create two forms in one application that way, I'm pretty sure you end up on two different threads. You can also start the application without tying it to a particular form Form1 frm1 = new Form1(); frm1.Show(); Application.Run(); Then you can open and or close forms without the problem of shutting down the application when you close a form, or having to leave a form in memory while your app is running even if you don't need it. Of course it DOES introduce the problem of your having to specifically end your application. WhiteWizard aka Gandalf MCSD.NET, MCAD, MCT > > You can do so using Show and Close method of the Form. Let us suppose > > that [quoted text clipped - 15 lines] > Application.Run(new Form1()); > Application.Run(new Form2()); // will start when Form1 ends Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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