Form1.Visible = false equivelent in C#.NET 2.0

Question

I am fairly new to C#.NET only been writing it for about 6 months. Have writen VB for around 8 years. I have a simple application I am making in C#.net and I have 2 forms. I want to hide both form from Form2. At the moment I have private void button1_Click(object sender EventArgs e) { Form1.ShowTaskbar(); this.Visible = false; Form1.Visible = false; } Error 1 An object reference is required for the nonstatic field method or property 'System.Windows.Forms.Control.Visible.get' so this.Visible = false works but Form1.Visible = false doesn't.

Vimal Kandasamy · Answer

Hi once again you have to create a object for form1 in the form2 ( where ever and when ever u want to use that form u have to create object for form1..) it must like formname obj=new formname(); obj.methods(); it worked well for me.. plz try this.

Brandon Lewis · Answer

You created MainForm in Program and therefore it will only exist in the static Program class.If you want a reference to it you will need to make it a public (or internal) property of the static Program class and access it like so: Program.MainForm Though I think theres a better way to do it I think your missing some fundamental concepts of C# and trying to apply things that worked in VB that wont work in C#. A static class in C# is like a Module in VB. Members inside of a C# static class can only be accessed via the class name such as MyClass.MyMember. You never have to create an instance of a static class (in fact the compiler will curse you if you try) to access its members just so long as you have access to the class Type. MainForm doesnt exist in Form2 it exists in Program and therefore Form2 cannot access it. What exactly are you trying to do? It may be easier if you tell us what you are trying to do and then we can explain it better...

Brad Finn · Answer

Thanks guys I kind of understand what you mean the Form1 is an object type which you are creating a new of. I tried this: static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Form MainForm = new Form1(); Application.Run(MainForm); } Form2 private void button1_Click(object sender EventArgs e) { Form1.ShowTaskbar(); this.Visible = false; MainForm.Visible = false; } Error 1 The name 'MainForm' does not exist in the current context I assume it needs to be public or something :( any ideas?

Brandon Lewis · Answer

Unlike VB you cant call Show() or ShowDialog() on a form statically. The reason the this keyword works is because your making a reference to the containing object which is a System.Windows.Form object. Show() and ShowDialog() are instance accessible members only in C#.

Vimal Kandasamy · Answer

Hi in c# you have to create a object for form to use its functions. ex: if you want to show/hide a form which is named as menu1.then menu1 m=new menu1(); m.show(); m.hide(); m.hide() is equivalent to form1.visible=false; try this.