Mdiparent - Is this bug solved?

Mdiparent - Is this bug solved?

• ssuggs

  you said change Form1 to be MdiParent=True!!!

  how is that it should be initially an mdi form, and then assign forms to it as childs

  (i.e: Form1.MdiParent = Me and Me is the MDI form!)

  
  
  

• andig2

  did you try to use the Activate method like if the form is Form1, you load it in the mdi liek the following:

  Form1.MdiParent = Me
  Form1.Show()
  Form1.Activate()

  
  
  

• vtcoder

  you see! this step by step scenario that you gave is much better...

  ANSWER TO THE BUG QUESTION:
  this is not a bug, in form2 in initializecomponent, just go to SuspendLayout (or search for it in form2) and remove this line. and then run the applicaiton and the form will show maximized as expected!

  this happens because by default the layout of the form in initializecomponent is suspended, for it to setup multiple controls settings and then resume.

  
   

  
  
  

• Don_Ram

  Henri,

  maybe you can try this as workaround. Change the WindowState in the properties to be Normal. In the code you can then set WindowState = FormWindowState.Maximized just before you call Show() method.

  EDIT: It is exactly the same as suggested in the post you linked to but it was not clear to keep the value in the designer properties to be Normal.

  
  
  

• Matt j Cimino Crawford

  Please do not post duplicate posts. If your question has not received any replies it is most likely because nobody that can give you an answer has replied to it yet. Have some patience.

  Your other post is this one
  http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=406055&SiteID=1

  EDIT: other post deleted and keeping this instead.

  
  
  

• J. Skrzypiec

  sorry Andreas / henri, but it is still unclear, can you give us a step by step scenario to simulate the problem
  
  

• bkavanaugh

  Hmm, but is there nobody dat has the same problem And there isn't a patch o.i.d.
  
  

• Gyða

  There are others, you can track this bug in the product feedback center

  http://lab.msdn.microsoft.com/productfeedback/viewfeedback.aspx feedbackid=aa68c6a2-5b37-480a-afb5-b0ba8c269c4c

  You can also vote and validate it so it will hopefully get more attention from microsoft.

  
  
  

• Gokhan Ertas

  Sorry, my mistake. It should be MdiContainer = True. I fixed it in the post.
  
  

• Yankee

  Create new project, use Windows Application template
  Change Form1 to have MdiContainer = True
  Add a menustrip control to Form1

  Add a new form to the project, Form2
  Set Form2 WindowState to be Maximized in the properties at design time

  This code goes into Form1_Load event

  private void Form1_Load(object sender, EventArgs e)
  {
  Form2 f = new Form2();
  f.MdiParent = this;
  f.Show();
  }

  When I wrote these steps I noticed that if you do not have WindowState set to Maximized in the properties at design time and only set it when displaying the window in Form1_Load it will actually work as I would expect. Before I only tried to set it again but it seems to be depending on what value it has after creating it.

  
  
  

• FedericoAX

  You must set the parent als mdiParent before you can use mdiChildren into it.

   

  Form1.MdiParent = Me --------> The Me is the form wich has MdiParent=True

   

  Edit: yes it's true: mdicontainer :)

  
  
  

• Normality2000

  you are right, but i think we are closer for the cause of this behaviour
  
  

• Emphyrio

  I see no reason why SuspendLayout() should cause the Form2 to render incorrectly as a MDI child, if there is a menustrip. If you remove the menustrip it renders correctly.

  If this is not a bug it is a very strange undocumented requirement for the use of SuspendLayout().

  What you suggest works but it is another workaround. This bug is real.

  
  
  

• tdanut

  It is very simple to reproduce this bug.

  Create a new project, change Form1 to be MdiContainer=True, add a MenuStrip to Form1. Add another form to the project.

  In Form1_Load, create Form2, set Mdiparent to Form1 and WindowState to Maximized.

  Form2 will be drawn incorrectly, just resizing Form1 will result in Form2 beeing properly painted.

  There was a workaround posted to set WindowState after having shown Form2 but it did not work for me.

  Show/Hide/Show does work to get it painted correctly.

  EDIT: Fixed mistake MdiParent = True should be MdiContainer = True

  
  
  
• Mdiparent - Is this bug solved?