Programming Forums > Application Development > Visual Basic .NET

Ooble · Apr 21st, 2005, 12:56 PM

This is Visual Basic .NET - it doesn't work like that.

Dameon · Apr 23rd, 2005, 11:26 AM

In visual basic 6, all forms are singleton. He says it is "already made" because in VB6, when you make a form in the designer you use it without creating a form object.

In VB .Net you have to think of a form as a regular class...the class is made, but the object is not. First you create an object and then call its method. So in this case, you would indeed want to do:

(Toggle Plain Text)

Dim frm as new Form2
frm.Show

Wraith Daquell · May 27th, 2005, 9:15 PM

JaDa64, have you created Form2 yet? In .NET, as has already been stated, you must create a form object before showing it. It sounds whacked, but it's better that way. So say you have the form object, f, you'd call f.Show to show it. It's not tough to do once you've grasped the idea, but it took me months to figure it out (hey, guys, don't laugh too hard over that one... I'm teaching myself...

)
If you need any P2P help, just PM or Email me; I'm glad to help.

Mikeshaw · Jun 7th, 2005, 6:20 AM

Hi,

Im new to vb.net but i think everyone makes it a lot more complicated than it needs to be, if you have already made the second form in designer then simply put

form2.visible = true

into your button click

Mike

║▓��dhαrlεy▓║ · Jul 2nd, 2005, 11:57 AM

You could create a base form and have the created form be an inherent window that way you can open multiples of the inherent form within one window similar to Excel.

check out this link from msdn they have several walkthroughs and code samples.

http://msdn.microsoft.com/library/de...outoptions.asp

nez · Jul 2nd, 2005, 1:52 PM

I've been trying to do the same thing in Visual c# 2005 express edition (bete), using:

(Toggle Plain Text)

private void button1_Click(object sender, System.EventArgs e)
{
    Form2 frm = new Form2();
    frm.Show();
}

which is that i found on MSDN and is also suggested by someone here (ctor i think), but i get this error code when i compile it:

Quote:

The type or namespace name 'Form2' could not be found (are you missing a using directive or an assembly reference?)

i have created both forms already, any ideas?

Cheers
Nez

║▓��dhαrlεy▓║ · Jul 2nd, 2005, 9:46 PM

(Toggle Plain Text)

    Private Sub mnuFNew_Click( _
 ByVal sender As System.Object, _
 ByVal e As System.EventArgs) _
 Handles mnuFNew.Click
        Dim frm As New frmDataEntry

        frm.MdiParent = Me
        frm.Show()
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

This is how I did it with VB.net it needs the string Handles which is new from VB 6. This opens the new form by selecting File > New. Also the names will need to be changed to whatever you saved them as. frmDataEntry is the name of the form that opens when you select File > New

Rory · Jul 3rd, 2005, 4:27 PM

Dameon's right of course

I'd usually do this:

(Toggle Plain Text)

With IForm as New Form2()
.Show()
End With

which just looks a little more elegant.

Apr 21st, 2005, 12:56 PM	#11
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	This is Visual Basic .NET - it doesn't work like that. __________________ Me :: You :: Them

Apr 23rd, 2005, 11:26 AM	#12
Dameon Troll Join Date: Apr 2005 Location: Texas Posts: 732 Rep Power: 4	In visual basic 6, all forms are singleton. He says it is "already made" because in VB6, when you make a form in the designer you use it without creating a form object. In VB .Net you have to think of a form as a regular class...the class is made, but the object is not. First you create an object and then call its method. So in this case, you would indeed want to do: (Toggle Plain Text) Dim frm as new Form2 frm.Show Dim frm as new Form2 frm.Show

May 27th, 2005, 9:15 PM	#13
Wraith Daquell Programmer Join Date: Feb 2005 Location: Limbo Posts: 39 Rep Power: 0	JaDa64, have you created Form2 yet? In .NET, as has already been stated, you must create a form object before showing it. It sounds whacked, but it's better that way. So say you have the form object, f, you'd call f.Show to show it. It's not tough to do once you've grasped the idea, but it took me months to figure it out (hey, guys, don't laugh too hard over that one... I'm teaching myself... ) If you need any P2P help, just PM or Email me; I'm glad to help. __________________ The meek will inherit the earth. -WDaquell

Jul 2nd, 2005, 9:46 PM	#17
║▓��dhαrlεy▓║ Newbie Join Date: Jul 2005 Location: Arizona Posts: 19 Rep Power: 0	VB Inherent form (Toggle Plain Text) Private Sub mnuFNew_Click( _ ByVal sender As System.Object, _ ByVal e As System.EventArgs) _ Handles mnuFNew.Click Dim frm As New frmDataEntry frm.MdiParent = Me frm.Show() End Sub Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load End Sub Private Sub mnuFNew_Click( _ ByVal sender As System.Object, _ ByVal e As System.EventArgs) _ Handles mnuFNew.Click Dim frm As New frmDataEntry frm.MdiParent = Me frm.Show() End Sub Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load End Sub This is how I did it with VB.net it needs the string Handles which is new from VB 6. This opens the new form by selecting File > New. Also the names will need to be changed to whatever you saved them as. frmDataEntry is the name of the form that opens when you select File > New Last edited by ║▓��dhαrlεy▓║; Jul 2nd, 2005 at 10:00 PM.

Jul 3rd, 2005, 4:27 PM	#18
Rory Expert Programmer Join Date: Jan 2005 Location: London Posts: 542 Rep Power: 4	Dameon's right of course I'd usually do this: (Toggle Plain Text) With IForm as New Form2() .Show() End With With IForm as New Form2() .Show() End With which just looks a little more elegant.

Jun 7th, 2005, 6:20 AM	#14
Mikeshaw Newbie Join Date: Jun 2005 Location: glasgow Posts: 4 Rep Power: 0	Hi, Im new to vb.net but i think everyone makes it a lot more complicated than it needs to be, if you have already made the second form in designer then simply put form2.visible = true into your button click Mike

Jul 2nd, 2005, 11:57 AM	#15
║▓��dhαrlεy▓║ Newbie Join Date: Jul 2005 Location: Arizona Posts: 19 Rep Power: 0	You could create a base form and have the created form be an inherent window that way you can open multiples of the inherent form within one window similar to Excel. check out this link from msdn they have several walkthroughs and code samples. http://msdn.microsoft.com/library/de...outoptions.asp

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Programming Forums > Application Development > Visual Basic .NET

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