Weifenluo dockpanel suite: embed into tabcontrol & hide floating forms

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I am new to DockPanel Suite.
what i'm trying to achieve is, having Dockpanel component(with DocumentStyle = DockingMdi) within a TabControl in Winforms.
If i set DocumentStyle to DockingWindow or DockingSdi it works fine, but fewer docking options

SecondForm ^SF = gcnew SecondForm ();
SF->Show(dockPanel1, DockState::Document);

setting DocumentStyle to DockingMdi i get an runtime error

An unhandled exception of type 'System.InvalidOperationException' occurred in WeifenLuo.WinFormsUI.Docking.dll
Additional information: Invalid parent form. When using DockingMdi or SystemMdi document style, the DockPanel control must be the child control of the main MDI container form.

i added mf->Parent = this; above SF->Show(), i get a new runtime error saying

An unhandled exception of type 'System.ArgumentException' occurred in System.Windows.Forms.dll
Additional information: Top-level control cannot be added to a control.

My second query is, How to hide floating forms?
if all forms are docked in DockPanel, hide function works well,
if i call dockpanel1->Hide(); after making one form float, except floating form, everything else will be hidden
there should be some workaround for this. please share your thoughts

Thanks

What I have tried:

placing dockpanel outside tabcontrol makes it work (with DocumentStyle set to DockingMdi)

Posted 25-Jun-16 2:34am

Prakash1206

Updated 6-Jul-16 20:39pm

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2 solutions

Solution 1

TabControl is a container control which can not have top level control or MDI(which contain multiple forms), so what you are trying to do is not allowed by the control..

Second question's answer:-
first find your form then hide the form..
code is:-

C#

Form childFrm = this.MdiChildren.First(frm => frm.Name.Equals("findFormName"));
            if (childFrm != null)
            {
                childFrm.Hide();
            }

I hope this will help you..

Posted 26-Jun-16 22:42pm

JayantaChatterjee

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Prakash1206 27-Jun-16 5:05am

HiThanks for answering,
i couldn't follow second question's answer. i'm coding in C++/Cli.
so don't know about '=>' operator, i don't think its available in this language. also i cannot see 'First' function from MdiChildren in Visual studio.
Could you please explain your code bit more? so that i will try to convert to C++/Cli
Thanks & Regards

JayantaChatterjee 27-Jun-16 6:00am

sorry, code, I didn't see the C++ tag...
this is not in C++ code,its in C#.net...
you can get the help click this link:-

https://www.google.co.in/?gfe_rd=cr&ei=ctZwV-zoGtDk8Aey85MY&gws_rd=ssl#q=dockpanel+suite+documentation

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Prakash1206 · Accepted Answer · 2016-07-06T20:39:00

I Hope this helps someone with same issue. dockPanel1 = nullptr; doesn't help in this case. using below code,we can safely remove contents from dockPanel.

C++

if (dockPanel1->DocumentStyle == DocumentStyle::SystemMdi)
	{
		for each(Form ^form in MdiChildren)
			form->Close();
	}
	else
	{
		for (int index = dockPanel1->Contents->Count - 1; index >= 0; index--)
		{
		 if (dynamic_cast<idockcontent^>(dockPanel1->Contents[index]) != nullptr)
		 {
          IDockContent ^content = safe_cast<idockcontent^>(dockPanel1->Contents[index]);
		  content->DockHandler->Close();
		 }
		}
	}