protected void BtnApply_Click(object sender, EventArgs e)
{
clsCustomerCollection Customers = new clsCustomerCollection();
lblError.Text = "";
string CustomerID = txtCustomerID.Text;
int ID = 0;
bool test = int.TryParse(CustomerID, out ID);
if (test == false)
{
lblError.Text = "Please enter a valid Customer ID";
}
else
{
ID = Convert.ToInt32(CustomerID);
Customers.ReportByCustomerID(ID);
}
lstCustomerList.DataSource = Customers.CustomerList;
lstCustomerList.DataValueField = "CustomerID";
lstCustomerList.DataTextField = "allProperties";
lstCustomerList.DataBind();
if (lstCustomerList.Items.Count <= 0)
{
lblError.Text = "There are no customers with the ID " + CustomerID;
}
}
