how can i make textbox(n).text, how can i control n to write something in there

[SizOff]

Guys! Please help me! For example, i have a programme. There are 4 textboxes and 1 button. So i write in the first textbox a number 2, 3 or 4 and then in one of the textbox programme writes something (doesn't matter what):

Dim x As Integer
 
Sub Button1.Click(....)
x = Val(TextBox1.Text)
TextBox(x).Text = "blahblahblah"
End Sub

I hope i wrote it clear and you understand what i want - i want to control with this "x" in which textbox will i write something, but obviously my code isn't working. Please help!

[iam_clint]

Assuming you named the controls and know what they are you can simply use the name of the textbox control to modify the value.

If I assume you don't have the names of the textboxes because they are dynamic you can iterate the controls.

 For Each ctrl as control In form1.Controls
   If (ctrl.GetType() Is GetType(TextBox)) Then
      ctrl.text="blahblahblah"
   end if
 Next
 

But thirdly if the controls are dynamic you can store references to them in an array when you create them and then modify them that way.

[SizOff]

Sorry, i didn't get your message fully (because i don't know english perfectly, yeah), but as I understood you're trying to say that i need to use "If". I tried to do it, and, well, it works, but i use to many code on that:

x = Val(TextBox1.Text)
if x = 2 Then TextBox2.Text = "blahblahblah"
if x = 3 Then TextBox3.Text = "blahblahblah"
if x = 4 Then TextBox4.Text = "blahblahblah"

So I don't like this version and want just to make like "TextBox(x).Text" without "If" or "For", but I don't know how to do it.

Or maybe I just understood you wrong.

[iam_clint]

the for loop I posted is probably going to be you're easiest solution. either that or create an array containing references to the textboxes you want.

I mean if you really wanted TextBox(i).text

    Dim TextBox As New List(Of TextBox)
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        For Each ctrl As Control In Me.Controls
            If (ctrl.GetType() Is GetType(TextBox)) Then
                TextBox.Add(ctrl)
            End If
        Next
        TextBox(1).Text = "test"
    End Sub