Query Regarding Visual Basic.Net Forms

**Kusagra** · 25-03-2009

I am not a programmer in visual basic.net. I am having a small query in this language. can anyone help me in finding the solution regarding as how can i change the background color of all the forms in vb.net?

Please provide some help regarding this

**Praetor** · 25-03-2009

Code:

Imports System
Imports System.Collections
Imports System.Data
Imports System.IO
Imports System.Xml.Serialization
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Printing

Public Class MainClass
    Shared Sub Main()
       Dim form1 As Form = New Form1()
       Application.Run(form1) 
    End Sub
End Class

Public Class Form1
    Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
    Public Sub New()
        MyBase.New()
        'This call is required by the Windows Form Designer.
        InitializeComponent()
        'Add any initialization after the InitializeComponent() call
    End Sub
    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub
    Friend WithEvents btnColor As System.Windows.Forms.Button

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.Container
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.btnColor = New System.Windows.Forms.Button()
        Me.SuspendLayout()
        '
        'btnColor
        '
        Me.btnColor.Location = New System.Drawing.Point(54, 192)
        Me.btnColor.Name = "btnColor"
        Me.btnColor.Size = New System.Drawing.Size(184, 48)
        Me.btnColor.TabIndex = 0
        Me.btnColor.Text = "Change background color"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
        Me.ClientSize = New System.Drawing.Size(292, 268)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.btnColor})
        Me.Name = "Form1"
        Me.Text = "Color Dialog Example"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub btnColor_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles btnColor.Click
        Dim myDialog As New ColorDialog()
        Dim Temp As Color = btnColor.BackColor
        If myDialog.ShowDialog() = DialogResult.OK Then
            Me.BackColor = myDialog.Color
            btnColor.BackColor = Temp
        End If
    End Sub
End Class

**Katty** · 25-03-2009

Code:

foreach (Control ctl in this.Controls)
{
   try
   {
      // Attempt to cast the control to type MdiClient.
      ctlMDI = (MdiClient) ctl;

      // Set the BackColor of the MdiClient control.
      ctlMDI.BackColor = this.BackColor;
   }
   catch (InvalidCastException exc)
   {
      // Catch and ignore the error if casting failed.
   }		         
}
		
// Display a child form to show this is still an MDI application.
Form2 frm = new Form2();
frm.MdiParent = this;
frm.Show();

**kelfro** · 25-03-2009

Code:

'Set the new color
My.Settings.BGColor = MyDialog.Color
'Save the settings (so they're persisted)
My.Settings.Save()

hat line will need to be added to each form when it loads. Unfortunately, unless I have missed something, there isn't a way to set all the forms in a nice single statement, each has to be set manually.