CODEWITHSUNDEEP
vb.netdynamic
weeraa
weeraa

Reputation: 71

Dynamic control in VB.NET

This is my code for dynamic textbox controls in button click event. The code is working well. If i click the button 3 times, it is generated 3 text boxes. But I have no idea to assign text box values to a variable. I dont know the names of dynamic generated controls. if i want to add value to 3rd text box, how to do it?

Dim txtBx As TextBox
Static x As Integer
Static i As Integer

txtBx = New TextBox

txtBx.Location = New Point(10, 10 + x)
txtBx.Size = New Size(100, 20)

i = i + 1
x = x + 20

Me.Controls.Add(txtBx)

if i create normal textbox i can do it with,

TextBox3.Text = "Some value"

But I dont know to do this for dynamic controls.

Upvotes: 1

Views: 3337

Answers (1)

KekuSemau
KekuSemau

Reputation: 6856

Here's an example, storing the references in a List(Of Textbox):

Public Class Form1

Private tbList As New List(Of TextBox)

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
    Dim tb As TextBox
    Dim n As Integer

    n = tbList.Count + 1
    tb = New TextBox
    With tb
        .Location = New Point(10, 10 + (n * 20))
        .Name = "dynTB" & n.ToString
        .Size = New Size(100, 20)
    End With
    Me.tbList.Add(tb)
    Me.Controls.Add(tb)

End Sub

Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
    ' Testing:
    If Me.tbList.Count >= 3 Then Me.tbList(2).Text = "This is textbox 3"
End Sub

End Class

Upvotes: 1

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