About Variable Help me. in my Calculator Project

[Marvin777]

Hi. vbforumers

can someone help me a little bit.
thanks



just Addition only at this time
each number 0 to 9 have this code

    Private Sub btnOne_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOne.Click
        txtDisplay.Text = txtDisplay.Text & btnOne.Text
    End Sub

and the Plus Sign is

    Private Sub cmdPlus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdPlus.Click
 
        total1 = total2 + Val(txtDisplay.Text)

        txtDisplay.Clear()
    End Sub

i dont know is the Equal Sign he just give me a little clue this is the clue

    Private Sub cmdEquals_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdEquals.Click
        total2 = total1 + (something missing here)
    End Sub

here what he says..

Write the code for the equals button. There's only three lines in total, and here's a little help.

You need to use the other variable that was set up at the top of the coding window, total2. The variable total1 will be added to whatever is total2

The first line of code will be this

total2 = total1 + (something missing here)

Your job is to supply the missing code. In other words, replace "(something missing here)"

Remember that total1 contains the first number to be added. And you know where that came from. The only thing left to do is to add the second number.

For the second line of code, you need to transfer the total2 variable to the textbox.

For the third line of code, all you are doing is resetting the variable total1 to zero. That's because after the equals button has been pressed, we have finished adding up. If you wanted to do some more adding up, that total1 will still hold the value from the last time. If you reset it to zero, you can start adding some new numbers.

thanks

[mitko29]

I do not believe that someone will just write it for you here without give you something to read
However its not so hard to do a Equal Sign and equal function you just have to sum the 2 numbers in some integer or something after that to taka that result and show it in the calculator.

And I see that you searched help in other sites to http://www.dreamincode.net/forums/to...84-calculator/ or you just used the code but you can read what the comments are.

Ok here one tip :

 If txtAnswer.Text = "0" Then        'If the number in txtanswer is zero or a previous
            txtAnswer.Text = "1"            'answer it clears it and replaces with 1
        ElseIf txtAnswer.Text = var1 Then
            txtAnswer.Text = "1"
        Else
            txtAnswer.Text = txtAnswer.Text & "1"   'if it's a new number, it will add 1
        End If                                      'to the end of the number

        var2 = txtAnswer.Text

Private Function Calculate()

        If sign = 1 Then                        'if the add button was clicked
            txtAnswer.Text = var1 + var2        'then add the two numbers
        ElseIf sign = 2 Then                    'if the subtract button was clicked
            txtAnswer.Text = var1 - var2
        ElseIf sign = 3 Then                    'if the mult button was clicked
            If var2 = 0 Then                    'then if  multiplied by zero
                txtAnswer.Text = "0"            'the answer is zero
            Else
                txtAnswer.Text = var1 * var2    'if its not zero, mulitply the numbers
            End If

Then just declare this two :
Dim var1, var2 As Double
Dim sign As Integer
Look carefully how the two numbers are being stored.

[Marvin777]

oh, i see, BTW:
Thanks ;D