mdi parent form using windows form application

Question

0.00/5 (No votes)

See more:

i have a form mdi parent type and in this form have a treeview menu. treeview menu take some space on this form. when i click on a node of treeview a new form open namely(master form). when i maximize the opened form (master form) then some portion goes behind the treeview.i want to maximize that form leave the treeview menu portion.

Posted 29-Apr-14 1:37am

Member 10371658

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Alan N · Answer 1 · 2014-04-29T02:37:00

Solution 1

What you are seeing is the standard behaviour and if you want the maximised child forms to respect the positioning of your treeview then it should be DOCKED not anchored. You will probably want the treeview against either the left or right edges of the form so use DockStyle.Left or DockStyle.Right.

Alan.

Posted 29-Apr-14 2:37am

Alan N

Comments

johannesnestler 29-Apr-14 8:49am

no, this won't work with the MdiClient

Alan N 29-Apr-14 9:34am

I tested before posting so I am going to disagree. The main form's control collection (MFCC) initially has one member, the fully docked MdiClient control which is the container for the mdi children. If more controls are added to the MFCC, then they must also be docked otherwise the MdiClient will continue to occupy all of the client area of the main form and maximised mdi children will be appear to be "too big".

johannesnestler 30-Apr-14 5:01am

For Readers:
I was wrong, it works as Alan said, just reset the Z-Order of the MdiClient after Docking other (nonfFilling of course) controls. A reference to the MdiClient can be obtained from the MdiContainer-Form like this: MdiClient mdiClient = formMDI.Controls.OfType<mdiclient>().First();

johannesnestler 29-Apr-14 9:46am

Hi Alan,

I don't know what you tested, but just Setting the dockstyle on treeview won't help to solve op's Problem. Maybe give it a try. I'd guess you tested with code similar to this:
static void Main()
{
Form formMDI = new Form
{
Text = "Parent",
IsMdiContainer = true
};

TreeView treeview = new TreeView
{
Dock = DockStyle.Left,
Parent = formMDI
};

TreeNode nodeNewChildForm = new TreeNode
{
Text = "Dummy"
};

treeview.Nodes.Add(nodeNewChildForm);
treeview.NodeMouseDoubleClick += (object sender, TreeNodeMouseClickEventArgs e) =>
{
Form formChild = new Form
{
Text = "Child" + formMDI.MdiChildren.Length,
Parent = formMDI
};

formChild.Show();
};

Application.Run(formMDI);
}
Now try to move the child form "behind" the treeview - it works - same with maximize - this is OP's Problem (what I understand)

Greetings Johannes

Alan N 29-Apr-14 12:18pm

From the indentation of these comments it looks as if I may have replied to myself. Take a look at what I said in response to your latest.

Alan N 29-Apr-14 11:23am

It's good to be challenged but I still disagree as I tested with correct code, although you did have me worried!

It's essential to assign the MdiParent property of formChild so that it becomes a proper mdi child form. Setting formMDI as the parent will try to put formChild into the control collection of formMDI rather than that of it's MdiClient container.

By the way, won't the line
Parent = formMDI
in the child form .ctor fail as formChild is TopLevel and therefore cannot be added to a control collection.

johannesnestler 30-Apr-14 4:46am

Hi Alan,

Yes, the funny indentation - I thought the same when I posted my comment ;-)

Sorry for giving the wrong code, it appears that I corrected the code (Parent = formMDI to MdiParent = fromMDI) after copying it to this comment - I played arround with trying to influence the Z-Order of the MdiClient and other things, but nothing worked. If just the docking behavior of MdiClient would be "normal" the problem would be solved, but it isn't and I can't find a way to hinder a MDI-Child-Form to "go behind" the TreeView if maximized or moved. So I would be interested how you got the desired behaviour (can you post your test code?).

johannesnestler 30-Apr-14 4:58am

Hi Alan,

Now, minutes after I answered your reply I got it working, Seems that yesterday wasn't my best day... I just tried again to set the Z-Order and it works like you said. Sorry for not "beliefing" you ;-). So you are correct and I 5ed your solution. If OP is still interested: This is my test code (again, but without stupid copy mistakes)
static void Main()
{
Form formMDI = new Form
{
Text = "Parent",
IsMdiContainer = true
};

TreeView treeview = new TreeView
{
Dock = DockStyle.Left,
Parent = formMDI
};

TreeNode nodeNewChildForm = new TreeNode
{
Text = "Dummy"
};

MdiClient mdiClient = formMDI.Controls.OfType<mdiclient>().First();
mdiClient.SendToBack();
mdiClient.Dock = DockStyle.Fill;

treeview.Nodes.Add(nodeNewChildForm);
treeview.NodeMouseDoubleClick += (object sender, TreeNodeMouseClickEventArgs e) =>
{
Form formChild = new Form
{
Text = "Child" + formMDI.MdiChildren.Length,
MdiParent = formMDI
};
formChild.Controls.Add(new TextBox { Text = "blabaldfklasdflafaasdfasjfowhtg" });

formChild.Show();
};

Application.Run(formMDI);
}

johannesnestler 30-Apr-14 5:04am

The comments doesn't show the greater and smaller signs - so on formMDI.Controls.OfType there should be a type Parameter (MdiClient) but it dosn't show it here...

Alan N 1-May-14 9:20am

Ah, so we agree. I knew we would eventually. I wonder if my answer fixed the OP's problem.

Who uses MDI anyway!

Cheers, Alan.