Assign HREF to Anchor tag in Code Behind using C# and VB.Net in ASP.Net

Use code like below.

C#

private void GetaboutInfo()
{
    using (SqlConnection conn = General.GetConnection())
    {
        using (SqlCommand _cmd = General.GetCommand("about_details", conn))
        {
            conn.Open();
            SqlDataReader _dr = _cmd.ExecuteReader();
            if (_dr.Read())
            {
                string number = toPersianNumber(_dr["Mobile"].ToString());
                LblMobile.HRef = "tel://" + number;
                LblMobile.InnerHtml = number;
            }
            conn.Close();
        }
    }
}

VB.Net

Private Sub GetaboutInfo()
    Using conn As SqlConnection = General.GetConnection()
        Using _cmd As SqlCommand = General.GetCommand("about_details", conn)
            conn.Open()
            Dim _dr As SqlDataReader = _cmd.ExecuteReader()
            If _dr.Read() Then
                Dim number As String = toPersianNumber(_dr("Mobile").ToString())
                LblMobile.HRef = "tel://" & number
                LblMobile.InnerHtml = number
            End If
            conn.Close()
        End Using
    End Using
End Sub