Run command from one form to another

[PureSc0pe]

What would I do to execute a command into a diff form? When I click a button on form2, I need it to execute that on form1..Any Ideas?

[Denaes]

You mean you want to create a method on one form and make it accessable on another?

 

It would have to be a public sub/function and I believe the form you want to run it off of would have to be instantiated (formX = new formX).

 

Generally if you have something you want accessable across forms, it's best to create a class for both forms to access.

 

Then again after having a form's code raging upward of 2000 lines of code, you quickly learn to love encapsulating code in classes :)

[PureSc0pe]

When I click a button on form2, I need it to do this on form1:

 

ComboBox1.DataSource = ini.GetSectionNames()

 

 

 

Something like this?

 

Form1 = New Form2

ComboBox1.DataSource = ini.GetSectionNames()

[georgepatotk]

in form1

 

private sub btnNextForm_Click(....) btnNextForm.Click
  dim frm2 as new Form2
  frm2.parentForm = me
  frm2.show
end sub

public sub ToBeExecute()
  'do whatever you like here
End Dub

 

 

in form2

 

Public Shadows parentForm as Form

Private Sub btnCallFromForm1_Click(...) btnCallFromForm1.Click
  parentForm.ToBeExecute()
End Sub

[PureSc0pe]

In form1, I put:

 

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
       Dim frm2 As New Form2
       frm2.ParentForm = Me
       frm2.Show()
   End Sub

   Public Sub ToBeExecute()
       ComboBox1.DataSource = ini.GetSectionNames()
   End Sub

 

 

In form2, I put:

 

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
       ParentForm.ToBeExecute()
   End Sub

 

There are no errors in form1, however, form2 says "ParentForm.ToBeExecute()" is an error...It's not a member of System.Windows.Forms.Form

 

And yes I defined "Public Shadows ParentForm As Form"

Edited May 7, 2004 by PureSc0pe

[georgepatotk]

then do it in this way

Public Shadows parentForm as Form1

[PureSc0pe]

then do it in this way

Public Shadows parentForm as Form1

 

That got rid of the coding errors, however, when I run it, it highlights the following: "ParentForm.ToBeExecute()"

 

Error: An unhandled exception of type 'System.NullReferenceException' occurred in PureSc0pe's Program.exe

 

Additional information: Object reference not set to an instance of an object.

[georgepatotk]

I think you must be running the program directly from Form2

 

you got to run it from Form1.

the form1 link to form2

let the Form1 set 'parentForm = Me' before you run the procedure

[PureSc0pe]

Does the fact that their both forms and neither one is the actual .exe matter?

[georgepatotk]

ur startup has to be Form1. that's all

does it work??

[PureSc0pe]

ur startup has to be Form1. that's all

does it work??

 

I am trying to execute a command on a form from another form...It's not using the startup form.

[georgepatotk]

OK then.

you got to do this.

 

dim frm1 as new Form1

frm1.ToBeExecute()

 

I think your knowledge on OO is still weak. Just read more article or books will do.

 

Update me wheter this had cleared your doubt.

[PureSc0pe]

It runs everything, but it doesn't execute the command...

 

In the form it needs to be executed in i have this:

 

Public Sub ToBeExecute()

ComboBox1.DataSource = ini.GetSectionNames()

End Sub

 

In the form the button is pressed to execute the command:

 

Public Shadows parentForm As Form1

 

Form2_Load

ComboBox1.DataSource = ini.GetSectionNames()

Dim frm2 As New Form2

frm2.parentForm = Me

frm2.Show()

 

Buton Click

dim frm1 as new Form1

frm1.ToBeExecute()

[georgepatotk]

zip it and upload. I will fix for you.

[georgepatotk]

See this example

MyFirstApplication.zip

[PureSc0pe]

Form2.vb is where you click the button and it executes the command on TS.vb What you enter into Form2.vb is written onto settings.ini I need combo1.text to update when you add a server to the list... ComboBox1.DataSource = ini.GetSectionNames() gets the names from the ini file.. Edited May 7, 2004 by PlausiblyDamp

[georgepatotk]

I got your problem.

 

Give me few minutes.

I write an example for you.

[georgepatotk]

Your program is nice.

Good interface..

MyFirstApplication.zip

[PureSc0pe]

Thanks :D

 

But were you able to get it to work on my program? I changed mine to what you had and it's still not working... :(

Edited May 7, 2004 by PlausiblyDamp

[PureSc0pe]

Here's what I added... Edited May 7, 2004 by PureSc0pe

[georgepatotk]

    Private Sub TS_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       ComboBox1.DataSource = ini.GetSectionNames()
       f2 = Me
       f3 = New Form2
   End Sub

 

Congratulation! it is done.

[PureSc0pe]

The upload is being removed...Why are executables not allowed?

[georgepatotk]

casue exe might cause virus..

[PureSc0pe]

I see..ok I won't upload .exe anymore..

 

Anyways, It works! Thanks for all your help! ;)

[georgepatotk]

Is it working as expected??

Kindly let me know, if it works, then I need to go out.