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How to fill MDIForm with default content in c#?

I have created MDIForm that contains some child forms. Now i want to load some default content in MDIForm because without any content it is not looks good while opening MDIForm just like
.
When i tried to make some contents in MDIForm then the child form are behind the controls like
.
I tried load a child form in MDIParent form but it occurs some issues like i set form border style none, but it display minimize, maximize and close buttons. It affects on my designing & controls position too, but i can manage it using dock/anchor but the problem is form border style(as you can see in image2).
So please someone tell me that what is the right way to do this?
I hope you understand what i want to say. If you have doubt then you can ask me about that.

Showing a modeless form's 'title bar' inside the parent form when it's minimized

I'm trying to implement some complement views inside my application and I would like to have a better layout control over them. I don't know how to explain in words what my desired functionality is, so I made it through with some photoshop help, hoping you could give me a hand to implement it.
My application now looks like this:
(i need reputation to post images so.. sorry for the links)
http://i59.tinypic.com/2ikv8m1.jpg
When I minimize the modeless form which is focused in the previous image, I would like to be able to see it (and handle it to maximize or close) inside my main form as I show in the image below (made it in photoshop)
http://i58.tinypic.com/1e28go.jpg
Hope someone can lead my into a solution and thanks for the support.
EDIT: I need to be able to move that form outside my main form, even to a different monitor.

If you don't want to use the MDI approach, then set TopLevel of the modeless Form to false and add it to the main Forms Controls collection before showing it:
Form frm = new Form();
frm.TopLevel = false;
this.Controls.Add(frm);
frm.Show();
*Obviously changing Form to the correct type of your modeless form.

If i understand what you are trying to do, you want to minimize a certain form but still see it within your app (im assuming like Excel or Word)
You can do something similar to what Idle_Mind said, but enclose both in a Form instead of the parent.
Form fParent = new Form();
fParent.Dock = DockMode.Fill;//i think this is the syntax. Use this if you want the form to fill to the screen
Form fChild = new Form();
fChild.TopLevel = false;
fParent.Controls.Add(fChild);
fChild.Show();
Here, it should minimize to the lower left part of the parent form. You can then size the parent to whatever you want it to be.

Creating popup without possibility to tab to a background element

I am trying to create a popup but when it is open it is still possible to use the tab key to switch the focus to an element in the background (e.g. to a button and use space to press is). The only way I found until now is to check on every lostFocus event (which also fires for every element contained in the Border element) and check if the focus is now in a element inside the Border. If not I manually set the focus.
Is there a nicer way to keep the focus within the Border (or a Grid,...)
I'm working on a Windows 8 App.

Do you mean that using a Modal Dialog with Form.ShowDialog(Owner) still allows you to focus the parent components with Tab?
Can you give a sample of your code call?

Form2 form = new Form2(); //Make an instantiation of your Form
form.ShowDialog(); //ShowDialog()!!! NOT form.Show()!!! Or anything else :/

A few ideas:
Set Enabled to False on the background visual tree, though that might change the way things look if you still want to show them partly
Set IsHitTestVisible to False to disable pointer input
Use RenderTargetBitmap.Render() if targeting Windows 8.1 to render the content of the background to an image and simply replace all that visual tree with an image of it

how to display textBox control in MessageBox?

Any idea how to display textBox control in MessageBox.
I'm working on winforms projcet c#.
Thank you in advance.

You can't. MessageBox is a special container designed to only show a message and buttons. Instead, you can create your own Form with whatever controls you want, and use .ShowDialog() on it.

You can simply add an Input box from VB.NET into your C# project.
First add Microsoft.VisualBasic to your project References, then use the following code:
string UserAnswer = Microsoft.VisualBasic.Interaction.InputBox("Your Message ", "Title", "Default Response");
And that should work properly.

It will be better to add a new Form in you application which you can customize the way you want.
and just call it from where ever required.

you could create a classic win form that looks like a message box and opening it as a modal form
perhaps using Form.ShowDialog
more info at
http://msdn.microsoft.com/en-us/library/c7ykbedk.aspx

You cannot customise the MessageBox, its better you use a popup designed using Windows Form separately and use its instance to invoke.
customPopup popup = new customPopup();
popup.ShowDialog();
Place your controls on the popup form and set their access modifiers to public if you want to access the textboxes or labels etc in your previous form.
customPopup popup = new customPopup();
popup.msgLabel.Text= "Your message";
popup.ShowDialog();

As I know there is no way to do that.
You can create a winform change it's style to look like a MessageBox and add your own controls.

Yes, as krillgar mentioned,you should create your own form. And
1. Encapsulate the form in a static class or function, so you may just call MyMessageBox.Show().
2. The textbox should have readonly=true, so the end users won't be able to change the text displayed, while they could select text and copy to clipboard.
Regarding to item 2, I believe many Windows build applications and MS Office use such approach.

using Microsoft.VisualBasic;//add reference
var Password = Interaction.InputBox("Message", "Title" ,"information in textbox", -1,-1);
In the variable "password" it receives the information that is entered from the text box.
Remember to add the reference "Microsoft.VisualBasic" in the solution explorer

Solution in here, you can create windows form and design it, set form is dialog, when you call form, it is auto show. In form you design, you set value some parameter static where other class in project, but you should set when you close form design that, OK, come back form init call show dialog, you create interval call when have == null return call, when != null you stop call back and using parameter in class static it !

C# set location of a minimized form

I am developing an application in C#. I have a Main Form where I have some buttons that give the user the possibility to start a new form into the Main Form.
When there are more of this kind of forms opened and the user choose to minimize one, it goes to back behind all opened forms. So if the user would want to open again that form he must close/minimise all forms.(for beeing able to see the minimized one)
How can I manage the minimised form location so it could be visible after it is minimised? I tried without any result stuff like that: bringToFront, Activate, Focus, etc.
My Main Form contains the buttons and a panel, so the forms are opening in the panel bellow the buttons.

why don't you go for MDI win-form ? I think they fit really well in what you are trying to achieve
http://msdn.microsoft.com/en-us/library/ms973874.aspx

Finally I did managed myself to solve the problem. It was so simple.
For the forms that opens in the panel child I removed
formName.Dock = DockStyle.Fill;
and I set the formName.Height = panelContainer-25; So now the little form minimized is visible.

I know this is late post but might be useful for someone like me.
Try this this was working for me to set minimized window location and size as well
https://social.msdn.microsoft.com/Forums/windows/en-US/d6014e48-2adb-4096-8bea-94c2f3b1c47c/how-to-change-the-location-of-a-minimized-mdichild-form?forum=winforms