Try to remove the If Not Postback check from the page load event:

MultiView1.SetActiveView(View1)

Dim PageNam As String = Request.QueryString("PageName")
PageId.Value = PageNam
Dim ds As DataSet = GetInspired.GetPageContent(PageNam)
' Dim ds As DataSet = GetInspired.GetPageContent("Default")
Dim MeCount As Integer = ds.Tables(0).Rows.Count()
Response.Write(MeCount)

For i = 0 To MeCount - 1
Dim myLabel = New Label
myLabel.ID = "lbl" & i + 1
myLabel.Text = "Content For " & ds.Tables(0).Rows(i).Item(2)
myLabel.CssClass = "lbl_sec"
Dim myTextBox = New TextBox
myTextBox.ID = ds.Tables(0).Rows(i).Item(0)

Dim LastTextBoxId As String = myTextBox.ID
myTextBox.CssClass = "Text_Sec"
myTextBox.TextMode = TextBoxMode.MultiLine
PageContentSection.Controls.Add(HtmlHelper.GetLiteral("<div id=Txt-" & LastTextBoxId & " >"))
Me.PageContentSection.Controls.Add(myLabel)
Me.PageContentSection.Controls.Add(myTextBox)
myTextBox.Text = ds.Tables(0).Rows(i).Item(3)
PageContentSection.Controls.Add(HtmlHelper.GetLiteral("</div>"))
Next
End Sub