Hello Folks,

       I am adding 4 labels,4 textboxs,4 combos to form dynamically at runtime to a panel.These are added according to selected value in the combobox.But now i want to validate each textbox which added dynamically on the panel.I am unable to identify each textbox.Can u please help me.Here i am giving my sample code.

                Panel1.Visible = True
                Panel1.Controls.Clear()
                Dim ch As String = cmbchoices.SelectedItem.ToString
                Dim i As Integer
                Dim lblsno As Label
                Dim txtanswer As TextBox
                Dim cmbrw As ComboBox
                Dim pos As Integer = 20
                Label4.Visible = True
                Label5.Visible = True
                Panel1.Controls.Add(Label4)
                Panel1.Controls.Add(Label5)
                Label4.Location = New Point(50, 5)
                Label5.Location = New Point(265, 5)
                For i = 1 To CType(ch, Integer)
                    lblsno = New Label()
                    lblsno.Name = "lbl" & i
                    'lblsno.ForeColor = White
                    lblsno.Location = New Point(30, 10 + pos)
                    lblsno.Size = New Size(20, 23)
                    lblsno.Text = i.ToString
                    Panel1.Controls.Add(lblsno)

                    txtanswer = New TextBox()
                    txtanswer.Name = "txt" & i
                    txtanswer.Location = New Point(50, 10 + pos)
                    txtanswer.Size = New Size(200, 23)
                    Panel1.Controls.Add(txtanswer)

                    cmbrw = New ComboBox()
                    cmbrw.Name = "cmb" & i
                    cmbrw.Location = New Point(270, 10 + pos)
                    cmbrw.Size = New Size(100, 23)
                    cmbrw.Items.Add("Right")
                    cmbrw.Items.Add("Wrong")
                    cmbrw.SelectedIndex = 1
                    Panel1.Controls.Add(cmbrw)
                    pos = pos + 30
                    If txtanswer.Text = "" Then
                        ErrorProvider1.SetError(txtanswer, "You Must Enter")
                    Else
                        ErrorProvider1.BlinkStyle = ErrorBlinkStyle.NeverBlink
                    End If

                Next

                Insert.Visible = True

            End If