A couple of points to note:
1. When referencing an article on the web, it is always helpful to
provide a link to the said article. Also, it is useful to mention the
version of the framework you are programming against.
2. You have not mentioned *where* you query the NumberOfRows and
NumberOfColumns. Is it in the Button click handler("FR")? Is it in the
Page_Load event handler?
3. I tried to replicate your problem using the simple page below but
it works just fine for me. Note that I made certain changes such as
variable declarations, explicit casting (Tip: always keep Option
Explicit and Option Strict On when you're working in VB, if you want
to be a good programmer.) and single line instantiation.
---
<%@ Page Language="VB" Explicit="true" Strict="true" %>
<script runat="server" >
Sub FR(ByVal sender As Object, ByVal e As EventArgs)
Dim NumberOfRows, NumberOfColumns As Integer
NumberOfRows = CInt(txtRows.Text)
NumberOfColumns = CInt(txtCols.Text)
Dim RR As New Random()
T.Rows.Clear()
For I As Integer = 0 To NumberOfRows - 1
Dim r As New TableRow()
For J As Integer = 0 To NumberOfColumns - 1
Dim C As New TableCell()
Dim v As Integer = RR.Next(0, 9)
C.Text = CStr(v)
r.Cells.Add(C)
Next J
T.Rows.Add(r)
Next I
lblNumRows.Text = "No. of Rows: " & CStr(T.Rows.Count)
lblNumCols.Text = "No. of Cols: " & CStr(T.Rows(1).Cells.Count)
End Sub
</script>
<html>
<head>
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Table ID="T" Font-Size="16" runat="server"
GridLines="Both">
<asp:TableRow>
<asp:TableCell>3</asp:TableCell><asp:TableCell>4</
asp:TableCell>
<asp:TableCell>7</asp:TableCell>
</asp:TableRow>
<asp:TableRow>
<asp:TableCell>5</asp:TableCell><asp:TableCell>5</
asp:TableCell>
<asp:TableCell>8</asp:TableCell>
</asp:TableRow>
<asp:TableRow>
<asp:TableCell>12</asp:TableCell><asp:TableCell>4</
asp:TableCell>
<asp:TableCell>9</asp:TableCell>
</asp:TableRow>
</asp:Table><br />
<label for="txtRows">Rows: </label>
<asp:TextBox ID="txtRows" runat="server" /><br />
<label for="txtCols">Cols: </label>
<asp:TextBox ID="txtCols" runat="server" /><br />
<asp:Button ID="btnCreate" runat="server" Text="Create"
OnClick="FR" /><br /><br />
<asp:Label ID="lblNumRows" runat="server" Text="No. of Rows: 3" /
><br />
<asp:Label ID="lblNumCols" runat="server" Text="No. of Cols: 3" /
><br />
</div>
</form>
</body>
</html>
---
