Hi
I posted this to the .Net general newsgroup and got a reply from "Morten"
who has given me an answer but in C# a language I have never worked with.
VB.Net is still very new to me, I was hoping someone here in the VB.net
group could help me a little. I have copied the posts to here.
Morten has given me a code snippet in C# but where do I use it and what is
the VB.Net equivalent.
Thanks DaveG
''''''''' Orig Post '''''''''''''' Hi
Using VB.net 2003
I know how to access controls on a 2nd form after declaring the form in the first.
But how do I access the controls on the original form from the 2nd form.
(in frmMain) Private Sub Button1_Click(B yVal sender As System.Object, ByVal e As System.EventArg s) Handles Button1.Click Dim form2 As New Form2 form2.TextBox1. Text = TextBox1.Text form2.Show() End Sub
(in Form2) Private Sub Button1_Click(B yVal sender As System.Object, ByVal e As System.EventArg s) Handles Button1.Click Dim form1 As New Form1 form1.TextBox1. Text = TextBox1.Text form1.Update() Me.Close()
End Sub
Form2 textbox updates ok The textbox in form1 does not update and still holds the original text before opening Form2
This is just a simple example I cannot get working, once I can get this working the I should not have problems with the actual code I need to use.
There must be a simple answer to this....???
Thanks in advance for any help given
DaveG
Hi Dave,
You need to pass a reference to your 1st form when declaring the 2nd, typically
Form2 f2 = new Form2(this); // Me in VB
Overload the constructor of the 2nd form to accept a 1st form parameter. Store the parameter for later use
On Sat, 30 Apr 2005 13:29:05 +0200, DaveG <no**********@d aveg.co.uk> wrote:
Thanks Morten
Now the problem is I have used the overload in normal funtions and subs but never with the constructors, so now I'm a little lost, I understand the reasons for the overload..... so the New form2(Me) will be excepted bur how to implement it is where I am stuck......
Dave, overloading a constructor is done the exact same way, although I'm
not sure how the VB syntax is. Store the Form1 reference for later use.
private Form1 myParent;
public Form2(Form1 f)
{
myParent = f;
}
then simply call
myParent.Method OrSimilarInForm 1()
whenever you need. 3 3240
Dave,
There are many roads that goes to Rome
Your mainform
\\\
Dim frm As New Form2
frm.Owner = Me
frm.Show()
///
You form where you want to use it.
\\\
MessageBox.Show (DirectCast(Me. Owner, Form1).TextBox1 .Text)
///
Assuming that you have a textbox1 on form1
I hope this helps,
Cor
"DaveG" <no**********@d aveg.co.uk> schrieb: I posted this to the .Net general newsgroup and got a reply from "Morten" who has given me an answer but in C# a language I have never worked with. VB.Net is still very new to me, I was hoping someone here in the VB.net group could help me a little. I have copied the posts to here.
Depending on the situation direct access to the parent form isn't required
in order to update the parent form upon closing the other form:
<URL:http://groups.google.d e/groups?selm=%23 7sTDoqHFHA.3208 %40TK2MSFTNGP10 .phx.gbl>
In MDI environments:
\\\
DirectCast(Me.M diParent, MainForm).TextB ox1.Text = ...
///
Providing a reference to an application's main form
<URL:http://dotnet.mvps.org/dotnet/faqs/?id=accessmainf orm&lang=en>
In VB 2005 you can access form instances more easily with 'My.Forms.*'.
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>
Thanks guys for your quick responses.
I think I am crawling along one of these roads to Rome. now I can see how
I am supposed to implement a basic setup I'm sure I can play a little, if
not "I shall be back".
DaveG
On Sun, 01 May 2005 09:54:54 +0200, DaveG wrote: Hi
I posted this to the .Net general newsgroup and got a reply from "Morten" who has given me an answer but in C# a language I have never worked with. VB.Net is still very new to me, I was hoping someone here in the VB.net group could help me a little. I have copied the posts to here.
Morten has given me a code snippet in C# but where do I use it and what is the VB.Net equivalent.
Thanks DaveG
''''''''' Orig Post ''''''''''''''
Hi
Using VB.net 2003
I know how to access controls on a 2nd form after declaring the form in the first.
But how do I access the controls on the original form from the 2nd form.
(in frmMain) Private Sub Button1_Click(B yVal sender As System.Object, ByVal e As System.EventArg s) Handles Button1.Click Dim form2 As New Form2 form2.TextBox1. Text = TextBox1.Text form2.Show() End Sub
(in Form2) Private Sub Button1_Click(B yVal sender As System.Object, ByVal e As System.EventArg s) Handles Button1.Click Dim form1 As New Form1 form1.TextBox1. Text = TextBox1.Text form1.Update() Me.Close()
End Sub
Form2 textbox updates ok The textbox in form1 does not update and still holds the original text before opening Form2
This is just a simple example I cannot get working, once I can get this working the I should not have problems with the actual code I need to use.
There must be a simple answer to this....???
Thanks in advance for any help given
DaveG Hi Dave,
You need to pass a reference to your 1st form when declaring the 2nd, typically
Form2 f2 = new Form2(this); // Me in VB
Overload the constructor of the 2nd form to accept a 1st form parameter. Store the parameter for later use
On Sat, 30 Apr 2005 13:29:05 +0200, DaveG <no**********@d aveg.co.uk> wrote: Thanks Morten
Now the problem is I have used the overload in normal funtions and subs but never with the constructors, so now I'm a little lost, I understand the reasons for the overload..... so the New form2(Me) will be excepted bur how to implement it is where I am stuck......
Dave, overloading a constructor is done the exact same way, although I'm not sure how the VB syntax is. Store the Form1 reference for later use.
private Form1 myParent;
public Form2(Form1 f) { myParent = f; }
then simply call
myParent.Method OrSimilarInForm 1()
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