Working with Panels ???

Working with Panels ???

• Ninja the code freak

  This is quite an age old problem. I've found the best way is to make user controls: name them appropriately, and put them onto your form either at run time or design time.

  There may be other methods. I've gone through precisely what you've said. However, think about it: do you really need all those panels (Of course, depends on what you are doing with them)

  
  
  

• Rick0124

  Hi I Have one form which contains a panel control "panel1"

  I have also a added to the project a usercontrol, "Usercontrol1", which you can add controls to just like in a form.

  Using the following code you can add or remove which userscontrols  you wish to view in the form

   

  Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

  Dim mycontrol As UserControl1 = New UserControl1

  Me.Panel1.Controls.Add(mycontrol)

  End Sub

  This code has two buttons one to add and one to remove the Usercontrol.

  By placing the new instance of the contol outside of the two button methods it becomes available to both methods.

   

  Public Class Form1

  Private mycontrol As UserControl1 = New UserControl1

  Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

  'Dim mycontrol As UserControl1 = New UserControl1

  Me.Panel1.Controls.Add(mycontrol)

  End Sub

  Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

  'Dim mycontrol As UserControl1 = New UserControl1

  Me.Panel1.Controls.Remove(mycontrol)

  End Sub

  End Class

  You should check if the panel contains a control before adding one to overcome the problem of one control hiding under the other like this:

  Lets say we have two user controls Control1 and Control2

  if I were going to add Usercontrol1 i need to check if the panel contains UserControl2 and remove it if true

  for example

  If panel1.controls.contains(usercontrol2) then
  panel1.controls.remove(usercontrol2)
  usercontrol2 = Nothing
  End IF

  panel1.contrls.add(usercontrol1)

  You can also dock the control to fill the Panel

  usercontrol1.dock =DockStyle.fill

  Hope this helps Ron

  
  

• PreFishing

  Hey,

  if you have more then lets say two panels on a form you should really do not doing it the "Bring To Front" way. As said before the best way is to design them aside the mother form and programatically insert them at run time.

  This link is in german but since code is pretty international I would recommend to have a look on they way its done there:

  http://www.microsoft.com/germany/msdn/library/vs2005/samples/anwendungen/windowsclient/default.mspx

  You can download the code and build the solution as you want.

  Bye

  
  
• Working with Panels ???