Category: .NET

14 May 2016 09:34

Joined:	10/04/2016
Level:	Bronze
Points:	89

Points:	4

Form that was specified to be the MdiParent for this form is not an MdiContainer. Parameter name: va

my mdi panel error is came this is my code, any one give idea how to solve this error

adminmdipanel adpanel = new adminmdipanel();
adpanel.Show();

usercreation uc = new usercreation();
uc.find.Visible = false;

uc.MdiParent = this;
uc.Show();
uc.Focus();

#765940

16 May 2016 03:21

Joined:	15/12/2015
Level:	Gold
Points:	1308

Points:	2

Hi,
1. try adding property IsMdiContainer = true; to your mdi Form_Load method.
2. try adding property this.IsMdiContainer = true; inside designer.cs.

#765941

16 May 2016 03:39

Joined:	10/04/2016
Level:	Bronze
Points:	89

Points:	1

Error is came

Form that was specified to be the MdiParent for this form is not an MdiContainer.
Parameter name: value

#765942

16 May 2016 06:42

Joined:	15/12/2015
Level:	Gold
Points:	1308

Points:	2

Hi,
1. Is adminmdipanel is your mdi parent form?
2. Have you written below code in mdi parent form?
usercreation uc = new usercreation();
uc.find.Visible = false;
uc.MdiParent = this;
uc.Show();
uc.Focus();

#765944

16 May 2016 21:55

Joined:	13/06/2007
Level:	Gold
Points:	21327

Points:	3

This error occur when Mdi parent is not set to its IsMdiContainer, you need the The Mdi parent must have it's IsMdiContainer property set to True. You can set this property at design time in your frmMainPanel form.
refer below snippet


Frm1 objfrm = new Frm1();
              objfrm.MdiParent = this;
              objfrm .Show();
              objfrm .Focus();

Thanks
Koolprasd2003
Editor, DotNetSpider MVM
Microsoft MVP 2014 [ASP.NET/IIS]

#765952

17 May 2016 03:10

Joined:	05/06/2009
Level:	Gold
Points:	10245

Points:	3

In your code which part you are getting exception. Can you tell little bit clear


adminmdipanel adpanel = new adminmdipanel();   // What is this for?
adpanel.Show();
usercreation uc = new usercreation();
uc.find.Visible = false;
uc.MdiParent = this;  // What about the MDI form
uc.Show();
uc.Focus();

In which line you are getting exception? What is the exception you are getting?

By Nathan
Direction is important than speed

Form that was specified to be the MdiParent for this form is not an MdiContainer. Parameter name: va

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