Using MDI Form closing and opening of forms in C#

Sourav Kumar Das

Using MDI forms closing of all background forms, whenever a new form is opened.

MDI forms consists of multiple forms (Form-1,Form-2,.....,Form-n)
If i open three forms (Form-1, Form-4, Form-5)
Suddenly i need to work on Form-9 and I open on Form-9.
But at Background there are three forms opened that should be closed whenever a new form is opened (i.e, Form-9).

Using MDI Forms..

So if there's a solution or link please send me.....

6 Replies

Know the answer? Post it — somebody with the same question will find it here.

Sourav Kumar Das8y ago
This is the solution for given problem.....

public MainForm(string sUsername, string sRole)
{
InitializeComponent();
Username = sUsername;
UserRole = sRole;
lblLoginUser.Text = sUsername;
lblUserRole.Text = sRole;
this.MdiChildActivate += new EventHandler(MDIParent1_MdiChildActivate);
}
void MDIParent1_MdiChildActivate(object sender, EventArgs e)
{
if (this.MdiChildren.Count() > 1)
{
foreach (Form childForm in this.MdiChildren)
{
if (childForm != this.ActiveMdiChild)
{
childForm.Close();
}
}
}
}
Sourav Kumar Das8y ago
Is there any solution, please send me....
Sourav Kumar Das8y ago
No didn't get the perfect result...@Sanwar Ranwa
Sanwar Ranwa8y ago
Check this

https://docs.microsoft.com/en-us/dotnet/framework/winforms/advanced/how-to-create-mdi-child-forms

try to check the menu and check all the article regrading the mdi and Form You can solve all your Problem
Sourav Kumar Das8y ago
No these links don't match with the conditions....
@Sanwar Ranwa
Sanwar Ranwa8y ago
Hello Sourav

Please check these Links

https://www.codeproject.com/Questions/742097/how-to-close-all-child-forms-when-opening-other-ch

https://stackoverflow.com/questions/29877125/mdi-child-form-close-on-new-open

https://mirfan00.wordpress.com/2010/09/07/close-all-active-childes-in-mdi-container-form/

https://docs.microsoft.com/en-us/dotnet/framework/winforms/advanced/how-to-create-mdi-child-forms

https://stackoverflow.com/questions/40685783/how-to-close-mdi-child-form-c-sharp