Mdi Child and Parent Form Opening & Closing

Question

In my Windows Application using c# I have created Mdi parent form and few child forms. I have linked the forms correctly but I want that If any child form is open then the parent form should not be working or be able to select till the child form is closed. How can I do it? Thanks in Advance !!!

Sujeet Suman · Answer

Ankush please once try below code. This may help you: Step-(01) On your MDIParent form on every menu item click you need to disable menuitem control. Like below: // Take a static variable type MenuItem public static MenuStrip menustrip; public MDIParent1() { InitializeComponent(); menustrip = this.menuStrip1; // Initialize menustrip variable } private void item01ToolStripMenuItem_Click(object sender EventArgs e) { ChildForm01 frm = new ChildForm01(); frm.Show(); menuStrip1.Enabled = false; // Make m enuStrip1 disable } Step-(02) On your every child form closing make m enuStrip1 enable. Like Below private void ChildForm01 _FormClosing(object sender FormClosingEventArgs e) { MDIParent1.menustrip.Enabled = true; // Make menuStrip1 enable } If this is helpful for you then please accept my Answer .

Ranjit Powar · Answer

Open child form as dialog like below ChildForm chld= new ChildFirm(); chld.ShowDialog(); If it helps you select it as correct answer.

Ankush · Answer

Thanks for the help the code worked perfectly.

Ranjit Powar · Answer

Check this demo. http://www.codeproject.com/Articles/48436/MDI-child-as-dialog-form-MDI-modal-workaround

Ankush · Answer

In the above image you can see Home page - Parent Form that contains menu strip control and the child form below with 3 buttons. My Task:- when any child form is open then the menu strip in parent form should be disabled or else any control should not work until the child form is closed. in the image you can see that I have opened 1 child form and still I can access the menu strip in the parent form. So how can I disable menu strip or any other control on parent form???

Ankush · Answer

In the above image you can see Home page - Parent Form that contains menu strip control and the child form below with 3 buttons. My Task:- when any child form is open then the menu strip in parent form should be disabled or else any control should not work until the child form is closed. in the image you can see that I have opened 1 child form and still I can access the menu strip in the parent form. So how can I disable menu strip or any other control on parent form???

Ankush · Answer

Ranjit Powar · Answer

If you want that MDI form do operations while child form is opened then use show () method. child.Show (); If it helps you select it as correct answer.

Ranjit Powar · Answer

If you want that MDI form do operations while child form is opened then use show () method. child.Show (); If it helps you select it as correct answer.

Ranjit Powar · Answer

Please explain your problem.

Ankush · Answer

the code u have written is the same as I wrote but there is a menu strip on parent form which contains menu item for Logout process.

Mithun Pattankar · Answer

Ankush You are defeating the whole purpose of MDI forms concept. But still you can have look at this link this might help http://stackoverflow.com/questions/11683141/open-one-child-form-at-a-time Accept it works for you.