how to minimize and maximize windows form in asp.net

Form.WindowState Property

http://msdn.microsoft.com/en-us/library/system.windows.forms.form.windowstate%28v=VS.90%29.aspx

public FormWindowState WindowState { get; set; }

For example -

var form = new Form();
form.WindowState = FormWindowState.Maximized;
form.WindowState = FormWindowState.Minimized;
form.WindowState = FormWindowState.Normal;

However, if you are in the code behind on the main form (or any form) just do this -

WindowState = FormWindowState.Maximized;

VB.NET

Private Sub btnCenter_Click(ByVal sender As Object, ByVal e As EventArgs)

       Dim boundWidth As Integer = Screen.PrimaryScreen.Bounds.Width

       Dim boundHeight As Integer = Screen.PrimaryScreen.Bounds.Height

       Dim x As Integer = boundWidth - Me.Width

       Dim y As Integer = boundHeight - Me.Height

       Me.Location = New Point(x / 2, y / 2)

End Sub

The Screen.PrimaryScreen.Bounds gets the bounds of the display screen. The width and height of the display is subtracted with the width and height of the form. Once we get this calculated value, set the location by passing the value to Point().

 

Maximize the Form

 

Step 1: Drag and drop a button on the form. Rename it to btnMax

Step 2:  On the click event, write the following code :

C#

 private void btnMax_Click(object sender, EventArgs e)

{

      this.WindowState = FormWindowState.Maximized;

}

VB.NET

Private Sub btnMax_Click(ByVal sender As Object, ByVal e As EventArgs)

Me.WindowState = FormWindowState.Maximized

End Sub