Program to split string using c# asp.net

Program to split the given string in asp.net
   like that you can enter the  abc1288hbgg23  so split this string in two parts one is string and one is integer..
  
   Asp.net code

 <asp:TextBox ID="txtname" runat="server">
    </asp:TextBox>
    <asp:Button ID="btn" runat="server" Text="click" onclick="btn_Click" /><br /><br />
    <asp:Label ID="lbmsg" runat="server" Visible="false">String Part..</asp:Label><br /><br />
        <asp:Label ID="Label1" runat="server"></asp:Label>
        <br /><br />
    <asp:Label ID="lblmsg1" runat="server" Visible="false">Integer  Part..</asp:Label><br /><br />
     <asp:Label ID="Label2" runat="server"></asp:Label>
        <asp:Label ID="lblmsg2" runat="server" Visible="false">Other  Part..</asp:Label><br /><br />

    <asp:Label ID="Label3" runat="server"></asp:Label>

C# code...

Label lb = new Label();
    Label lb1 = new Label();
    protected void btn_Click(object sender, EventArgs e)
    {
        string nm = txtname.Text;

        lbmsg.Visible = true;
        lblmsg1.Visible = true;


        for (int i = 0; i < nm.Length; i++)
        {
            if (nm[i] >= 48 && nm[i] > 58)
            {
                lb.Text += nm[i];

            }
            else
            {
                lb1.Text += nm[i];

            }
        }

             Label1.Text  = lb.Text;
             Label2.Text = lb1.Text;
       

        }