How to open a MDIchid form from another MDIchild form within a MDIparent form

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Hello,
Here i is have 4 forms(Form1, Form2, Form3 and Form4) Form1 is MdiContainer(IsMdiContainer = true;), Form2, Form3 and Form4 are Mdichild forms.
In Form1 Load event i wrote the code as follows:

C#

private void Form1_Load(object sender, EventArgs e)
     {
         Form2 f2 = new Form2();
         f2.MdiParent = this;
         f2.ShowDialog(); 
     }

In Form2 form i have two buttons called "btnf3"and "btnf4".
1.If i click on "btnf3"
i wnat to open Form3 as a MDI child form of Form1 and also this Form2 has to be closed. (for closing this i wrote this.Hide();)
2.If i click on "btnf4" i want to open Form4 as a MDI Child form of Form1 and also close Form2 (MDI child form) has to be closed.

Please tell me what should i write in those buttons click events
Thanks... in advance.

Posted 31-May-12 9:59am

anilkumar.6714

Updated 31-May-12 18:11pm

v2

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Maciej Los 31-May-12 16:26pm

Where is a problem?

2 solutions

Solution 2

Take a look at similar discussion: How to Open Child Window in tab[^]

Posted 31-May-12 20:14pm

Maciej Los

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VJ Reddy 1-Jun-12 2:27am

Good reference. 5!

Maciej Los 1-Jun-12 2:49am

Thank you, VJ ;)

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Sergey Alexandrovich Kryukov · Accepted Answer · 2012-05-31T11:30:00

Here is the best way of doing things right: never using MDI.

Here is the idea: who needs MDI, ever? Why torturing yourself and scaring off your users?
Do yourself a great favor: do not use MDI at all. You can do much easier to implement design without it, with much better quality. MDI is highly discouraged even by Microsoft, in fact, Microsoft dropped it out of WPF and will hardly support it. More importantly, you will scare off all your users if you use MDI. Just don't. I can explain what to do instead.

Please see:
http://en.wikipedia.org/wiki/Multiple_document_interface#Disadvantages[^],
How to Create MDI Parent Window in WPF?[^].

And please also see my past answers explaining what to do:
Question on using MDI windows in WPF[^],
MDIContainer giving error[^],
How to set child forms maximized, last child form minimized[^].

Good luck,

—SA