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C#.NET ChildWindow Position + Maximize

I have a main application form, I've set the IsMdiContainer property to TRUE
I have a panel in the main application form on the top but when I open the ChildForm it opens behind the panel. How do I set location relative to the bottom of the panel + maximize the window?

As Hans said in comments, Set the Dock property of Panel to Top for example. And add your Mdi Childs this way:
Example:
private void MdiTest_Load(object sender, EventArgs e)
{
//Codes for test only
var f = new Form();
f.Controls.Add(new TextBox());
f.MdiParent = this;
f.Show();
}
Note:
You can access to MdiClient control this way:
var mdiClient = this.Controls.OfType<System.Windows.Forms.MdiClient>().First();
Then you can do anything with it if you need. It is a Control like other controls.
Normal State:
Maximized State:

Resize controls in MDI child

I have a mainform that contains a panel in which different MDI child forms are displayed. The controls in the MDI child got Anchor = Left, Right, Top, Bottom to resize.
The problem is the resizing of the controls in the MDI child when the main form is resized. I got it working with the following code:
private void MainForm_Resize(object sender, EventArgs e)
{
foreach (Form f in panel.Controls.OfType<Form>())
{
f.WindowState = FormWindowState.Minimized;
f.WindowState = FormWindowState.Maximized;
}
}
The problem is that the controls in the MDI child permanantly change their location when you are resizing. Is there some way to call a Resize method?

For those who got the same issue:
You need to set the Dock property to DockStyle.Fill for the MDI child. Else it just doesn't resize the controls.

How can i Remove Maximize,Minimize and Close icon in MDI Menustrip

iam using C#.Net Windows Application.In my project have different module that will be used by MDI..
now what the problem is,i can open a new form mean they will display maximize,minimize and Close icon in both MDI and Menustrip.See Below Image...
How can i remove child forms icons(Maximize,Minimize and Close) from MenuStrip
Thanks in Advance...

In winforms the area where those buttons are is called ControlBox if you do not want them to be displayed you should set the ControlBox property of the form to false
childForm.ControlBox = false;
But as pointed out in the comments you could use your forms as UserControls by just setting its TopLevel property to false
Form childForm = new Form()
childForm.TopLevel = false;
childForm.Parent = MainForm;
childForm.Show()
Doing that you can acomplish the same final result as an MDI form

I am sure this is solve for what you search
in first you should set all properties
formborderstyle = None
ControlBox = false
MaximizeBox = false
MinimizeBox = false
showicon = false
and DO NOT SET Windowstate = maximized
secondly when you create object from this form
form1 form= new Student();
form.MdiParent = this;
form.Dock = DockStyle.Fill;
form.Show();

Open Modal window in Center of Parent Form in MDI Application

I am working on Winform application and want to open modal form in center of parent form. In Winform application there is :
MDI Form (open as startup form and act as container for all)
on click of one of the Menu item of MDI Form - opens a MDI Child form
on click of one of the button on MDI Child opened in step 2 - opens a modal form - which we need to open in center of MDI Child form (opened in step 2)
So for opening modal form in center 1st obvious solution i had done is
TestModalForm obj = new TestModalForm()
obj.StartPosition = FormStartPosition.CenterParent;
obj.showdialog(this);
but above solution didn't work as modal form always considers MDI Form as its Parent. So I workout for 2nd solution: in that i wrote method in Form Load of Modal window to position it in center as below:
private void MakeWinInCenter()
{
if (this.Owner != null)
{
Form objParent = null;
int TopbarHeight = 0;
if (this.Owner.IsMdiContainer && this.Owner.ActiveMdiChild != null)
{
objParent = this.Owner.ActiveMdiChild;
TopbarHeight = GetTopbarHeight(this.Owner);
}
else
objParent = this.Owner;
Point p = new Point((objParent.Width - this.Width) / 2, (objParent.Height - this.Height) / 2);
p.X += objParent.Location.X;
p.Y += TopbarHeight + objParent.Location.Y;
this.Location = p;
}
else
{
//If owner is Null then, we have reference of MDIForm in Startup Class - use that ref and opens win in center of MDI
if (Startup.MDIObj != null)
{
this.Left = Convert.ToInt32((Startup.MDIObj.Width - this.Width) / 2);
this.Top = Convert.ToInt32((Startup.MDIObj.Height - this.Height) / 2);
}
}
}
private int GetTopbarHeight(Form MDIForm)
{
int TopbarHeight = 0;
MdiClient objMDIClient = null;
foreach (Control ctl in MDIForm.Controls)
{
if (ctl is MdiClient)
{
objMDIClient = ctl as MdiClient;
break;
}
}
if (objMDIClient != null)
{
TopbarHeight = MDIForm.Height - objMDIClient.Size.Height;
}
return TopbarHeight;
}
Above solution works perfect when MDI form is opened in Maximized form. But when we checked by resizing the MDI form (i.e. not in maximized form) or moving MDI Form to other screen - in case of multiple screens, above solution is not working and doesn't opens the modal form in center of MDI Child form
Also looked at this Question but its not helpful to my problem.
Can anyone have any suggestions or solution to solve the problem.
Thanks

Try this:
TestModalForm.showdialog(this.MdiParent);

To show form using ShowDialog in center of its parent when the parent is MDI Child, you can use following code
The code is supposed to run from a button in a MDI Child form and show another form as modal dialog at center of the MDI Child form:
var dialog = new Form(); //The form which you want to show as dialog
//this.Parent point to the MdiClient control which is the container of this
var p = this.Parent.PointToScreen(this.Location);
p.Offset((this.Width - dialog.Width)/2 , (this.Height - dialog.Height)/2);
dialog.StartPosition = FormStartPosition.Manual;
dialog.DesktopLocation = p;
dialog.ShowDialog();
In above code, since the current form is a MDI Child, then this.Parent point to the MdiClient control which is the container of MDI Child forms, so we can use its PointToScreen method passing location of MDI child (this) to get the screen location of MDI child. Then if you offset that location using the half of difference between MDI children and dialog width and height and set the StartPosition of dialog to FormStartPosition.Manual and show it using ShowDialog.

Your method seems overly complicated. Why not just do it this way?
// All code goes in your MDI Child form
// Create the modal form
TestModalForm obj = new TestModalForm();
// Find center point of MDI Parent form
Point centerPoint = new Point(this.MdiParent.Top + this.MdiParent.Height / 2,
this.MdiParent.Left + this.MdiParent.Width / 2);
// Set the location and show the modal form
obj.StartPosition = FormStartPosition.Manual
obj.Location = centerPoint;
obj.ShowDialog(this);

I think you should do this
//for modal form set its strat position to centerparent like this
**this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;**
// this will open the modalform in center of parent form

In MDI forms center to parent doesn't work as expected see the documentation MSDN ,it is always recommended to use center to screen, but I use a work-around to this, after all it's about location positioning so I created an override method for center to parent and used it on the child form load event so that every time the child is loaded it is centered to parent:
private void CenterToParentOverride()
{
this.Location = new Point(
this.MdiParent.ClientSize.Width / 2 - this.Width / 2,
this.MdiParent.ClientSize.Height / 2 - this.Height / 2);
}

Docking mdi controls in c#

I have a main form in a panel on the left thats clickable, depending on what you click a new type of form opens. on the righti have another panel where i want to dock the forms that have been opened from clicking on the left.
How can i get the forms to add in a list under one another in the panel on the right? the issue with the code below is that it adds the first element fine. However when i add the second element they both dissapear behind the panel :/
private void addToPanel2(Form o)
{
if (o is Form)
{
if (panel2.Controls.Count == 0)
{
o.MdiParent = this;
panel2.Controls.Add(o);
o.Dock = DockStyle.Top;
o.Show();
}
else
{
//then we know that this is an addable data item
foreach (Form obj in panel2.Controls)
{
if(obj.GetType().Name.Equals(o.GetType().Name))
{
//we dont want to add it as the data type is already open
MessageBox.Show("This data item must already be open. Please Check.");
}
else
{
// add it as its not in there
Form f = (Form)obj;
f.MdiParent = this;
f.Dock = DockStyle.Top;
f.Show();
}
}
}
}
thanks

This is not possible, an MDI child form cannot be a child control of a panel. Adding a non-MDI form to a panel is an iffy proposition as well but is supported. Call its SetTopLevel() method, passing false, set its Visible property to true. You also have to set its FormBorderStyle property to None, it no longer behaves properly as a top-level window.
This just turns it into a UserControl. You are better off actually making it a UserControl, that uses a lot less resources and is much better documented.