[VB.NET] Very Simple TextBox Problem

[aristide]

Im having a problem with this code:

TextBox1.Text = (TextBox1.Text + "hello")

I want it do add "Hello" when someone clicks a button that changes the text of TextBox1. Im doing something wrong as the program crashes. What am i doing wrong?

[wild_bill]

Make sure option strict is on. Try this.

TextBox1.Text &= "hello"

[CoderKid]

Very Simple, and easy to fix:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        TextBox1.Text += "hello"
    End Sub

That should do it!

[ident]

Very Simple, and easy to fix:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        TextBox1.Text += "hello"
    End Sub

That should do it!

Generally when adding "plus" together we use &= as wild_bill showed. Not +=. += is generally used for integers.

[CoderKid]

You could also, to make the program more advanced, add another textbox that allows the user to choose his own text to be inputted into the textbox1:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Message As String = TextBox2.Text    
TextBox1.Text += " " & Message
TextBox2.Text = " " 
    End Sub

That is just a more advanced way of doing it. Basically, it just gets the text in TextBox2 by declaring a variable, and that variable is the text added to TextBox1.

Good luck!

[CoderKid]

Generally when adding "plus" together we use &= as wild_bill showed. Not +=. += is generally used for integers.

You're right....I'm just so used to using the plus sign. Maybe I should start using the & sign...

Thanks for your insights!

[stepdragon]

I'm pretty sure I originally used AND in VB3... when I updated to VB5, It didn't like AND anymore and & was the next logical choice...

I'm also pretty sure that VB3 didn't like using +... so I just learned how to do it by default.

[aristide]

Ok, i finally managed. Thanks guys for all the help!