How do you resize a form to fit its content automatically

Question

I am trying to implement the following behaviour   On a form there is a tabcontrol  On that tabcontrol there is a treeview  To prevent scrollbars appearing  I would like the form to change its size according to the contents of the treeview when displayed for the first time    If the treeview has too many nodes to be displayed on the default size of the form  the form should change it s size so that there is no vertical scrollbar on the treeview  up to a maximum size allowed by the size of the screen    What I need to know is  if it is possible to achieve this behaviour through the properties of the controls  I m sure this can be achieved by calculating and settings the sizes of the elements programmatically  but I would like to know if there is a way to achieve this by settings like AutoSizeMode etc    UPDATE   It s the first dialog a user of my application sees  It s a dialog to select the database to work with  It s a list of databases  with a tabcontrol  buttens etc  If the list is too long  scrollbars appear and a colleague of mine wants them to disappear

User · Answer

This might be useful  It resizes a new form to a user control  and then anchors the user control to the new form   Form f   new Form    MyUserControl muc   new MyUserControl    f ClientSize   muc Size  f Controls Add muc   muc Anchor   AnchorStyles Top   AnchorStyles Bottom   AnchorStyles Left   AnchorStyles Right  f ShowDialog

User · Answer

If you trying to fit the content according to the forms than the following will help  It helps me while I was trying to fit the content on the form to fit when ever the forms were resized      this contents Size   new Size this ClientRectangle Width    this ClientRectangle Height

User · Answer

Use the AutoSize and AutoSizeMode properties   http   msdn microsoft com en-us library system windows forms form autosize aspx  An example   private void Form1 Load object sender  EventArgs e           no smaller than design time size     this MinimumSize   new System Drawing Size this Width  this Height           no larger than screen size     this MaximumSize   new System Drawing Size Screen PrimaryScreen Bounds Width  Screen PrimaryScreen Bounds Height   int System Windows SystemParameters PrimaryScreenHeight        this AutoSize   true      this AutoSizeMode   AutoSizeMode GrowAndShrink          rest of your code here

User · Answer

You could calculate the required height of the TreeView  by figuring out the height of a node  multiplying it by the number of nodes  then setting the form s MinimumSize property accordingly      assuming the treeview is populated  nodeHeight   treeview1 Nodes 0  Bounds Height   this MaximumSize   new Size someMaximumWidth  someMaximumHeight    int requiredFormHeight    treeView1 GetNodeCount true    nodeHeight    this MinimumSize   new Size this Width  requiredFormHeight     NB  This assumes though that the treeview1 is the only control on the form  When setting the requiredFormHeight variable you ll need to allow for other controls and height requirements surrounding the treeview  such as the tabcontrol you mentioned    I would however agree with  jgauffin and assess the rationale behind the requirement to resize a form everytime it loads without the user s consent - maybe let the user position and size the form and remember that instead

User · Answer

From MSDN      To maximize productivity  the Windows Forms Designer shadows the   AutoSize property for the Form class  At design time  the form   behaves as though the AutoSize property is set to false    regardless of its actual setting  At runtime  no special   accommodation is made  and the AutoSize property is applied as   specified by the property setting

User · Answer

I User this Code in my project  Useful for me       private void Form1 Resize object sender  EventArgs e                int w   MainPanel Width     you can use form width when you don t use panels          w    w - 120  4     120 because set 15px for each side of panels                             and put panels in FlowLayoutPanel                             4 because i have 4 panel boxes         panel1 Width   w          panel2 Width   w          panel3 Width   w          panel4 Width   w

User · Answer

This technique solved my problem   In parent form   frmEmployee frm   new frmEmployee    frm MdiParent   this  frm Dock   DockStyle Fill  frm Show      In the child form  Load event    this WindowState   FormWindowState Maximized

User · Answer

I used this code and it works just fine  const int margin   5          Rectangle rect   new Rectangle              Screen PrimaryScreen WorkingArea X   margin              Screen PrimaryScreen WorkingArea Y   margin              Screen PrimaryScreen WorkingArea Width - 2   margin              Screen PrimaryScreen WorkingArea Height - 2    margin - 7            this Bounds   rect

User · Answer

By using the various sizing properties  Dock  Anchor  or container controls  Panel  TableLayoutPanel  FlowLayoutPanel  etc   you can only dictate the size from the outer control down to the inner controls  But there is nothing  working  within the  Net framework that allows to dictate the size of a container through the size of the child control  I also missed this a few times and tried the AutoSize property  but it never worked   So all you can do is trying to get this stuff done manually  sorry

[c#] How do you resize a form to fit its content automatically?

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