Vb.net variable pass between form1 and form2

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Hello I have 2 Form, that have variables, I would like to send variables from Form1 to Form2,but I did not do this, my codes are below, Could you please help me out;

I have 2 textbox and 1 button for Form1 , For Form2 I have 1 label and 1 button.I need to send d and b values to Form2 label1

Form1 Codes:

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

Dim a As Decimal
Dim b As Decimal
Dim c As Decimal
Dim d As Decimal

a = Val(TextBox1.Text)
b = Val(TextBox2.Text)

c = a + b * 5 / 8

d = c / 3
MessageBox.Show(d)

Form2.Show()

End Sub

form2;

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

Label1.Text = d + b

End Sub

What I have tried:

see my trails above but I cannot achieve to pass variables between forms

Posted 13-Feb-17 23:46pm

Member 12860952

Updated 14-Feb-17 0:06am

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3 solutions

Solution 1

There are a number of ways to pass data between forms, read Passing Data Between Forms[^]

Posted 13-Feb-17 23:56pm

Peter Leow

Solution 3

That would be the easiest (but for me not the best) way :

VB

On Form 1 :

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

 Form2.Label1.Text = (d + b).tostring

 End Sub

The best way would be to work with properties ...

Posted 14-Feb-17 0:06am

Ralf Meier

Updated 14-Feb-17 0:07am

v2

Comments

Michael_Davies 14-Feb-17 6:11am

I was already typing the code but sent the answer half done by mistake, full answer now present.

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Michael_Davies · Accepted Answer · 2017-02-13T23:57:00

Create a property on Form2 that saves the value you wish to pass into a private variable, call the property before showing the form.

Fr the example below Form1 would say Form2.Setb = b to set the b value.

VB

Public Class Form2
Private b As Decimal
Private d As Decimal

Public WriteOnly Property Setb As Decimal
        Set(value As Decimal)
            b = value
        End Set
    End Property
Public WriteOnly Property Setd As Decimal
        Set(value As Decimal)
            d = value
        End Set
    End Property

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

Label1.Text = (d + b).ToString

End Sub

Alternatively create a public global variable on Form2 and set it directly.

VB

Public Class Form2
Public b As Decimal ' You can access these from Form1 by Form2.b = ?
Public d As Decimal

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

Label1.Text = (d + b).ToString

End Sub