using System;
using System.Collections;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

using ColaReport;

namespace ColaReportDemo
{
	/// <summary>
	/// Demonstrates:
	/// Using Groups for summation
	/// </summary>
	public class demo3 : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label lblReport;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			Report oReport;
			CellColumn oCol;
			Group oGroup;
			DataSet dsRpt;
			string sQuery;

			OleDbConnection oConn;
			OleDbDataAdapter daRpt;

			// Get connection string
			oConn = new OleDbConnection (ConfigurationSettings.AppSettings["gsConn"]);
			
			//We later create a report "Group" on CustomerName.
			//It is therefore important to order by CustomerName here.
			sQuery = "SELECT c.CustomerName, i.InvoiceDate, i.InvoiceId, i.InvoiceTotal" +
				" FROM Customer c, Invoice i" +
				" WHERE c.customerid = i.customerid" +
				" ORDER BY c.CustomerName, i.InvoiceDate, i.InvoiceId";

			daRpt = new OleDbDataAdapter (sQuery, oConn);
			dsRpt = new DataSet();
			daRpt.Fill(dsRpt);


			// Define Report 
			oReport = new Report ();
			oReport.LinesPerPage = 33;

			oReport.Style.Add ("font-family", "Verdana");
			oReport.HeaderRowAttributes.Attributes["bgcolor"] = "#efefdf";

			oReport.FirstPageHeader.Text = "<h2>Demo: demo3.aspx</h2>";
			oReport.FirstPageHeader.Style.Add ("font-family", "Verdana");
			oReport.PageHeader.Text = "<h3>Demo: demo3.aspx</h3>";
			oReport.PageHeader.Style.Add ("font-family", "Verdana");

			oCol = oReport.CreateCellColumn ("CustomerName", "Name"); 
			
			// Don't bother repeating it since we are grouping by it
			oCol.SuppressRepeatedValue = true; 

			oCol = oReport.CreateCellColumn ("InvoiceDate", "Invoice Date"); 
			oCol.StringFormat = "{0:d}"; // date format

			oCol = oReport.CreateCellColumn ("InvoiceId", "Invoice Number"); 

			// NOTE: Could also use oCol.Attributes["align"] = "right";
			oCol.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Right;

			oCol = oReport.CreateCellColumn ("InvoiceTotal", "Invoice Total"); 
			oCol.SumColumn = true; //display totals for this column
			oCol.Attributes["align"] = "right";
			oCol.StringFormat = "{0:c}"; //currency format number

			// Create a group for the grand totals
			oGroup = oReport.CreateTotalGroup (true);
			oGroup.Cells["CustomerName"].Text = "Total";	
			oGroup.Cells["CustomerName"].Style.Add("font-weight", "bold");
			oGroup.Cells["InvoiceTotal"].Style.Add("font-weight", "bold");
			
			// NOTE: Could also use oGroup.Attributes["bgcolor"] = here
			oGroup.BackColor = System.Drawing.Color.FromArgb (249,249,200);

			oGroup.BlankLineAfterGroup = false;

			//Group data by CustomerName
			oGroup = oReport.CreateGroup ("CustomerName", true);
			oGroup.Cells["CustomerName"].StringFormat = "{0:g} Subtotal";

			// Make sure date column format is empty, otherwise it will try 
			// and display the Group value here
			oGroup.Cells["InvoiceDate"].StringFormat = "";

			oGroup.Style.Add("font-weight", "bold");
			
			oGroup.BackColor = System.Drawing.Color.FromArgb (249,249,249);

			//Bind dataset
			oReport.Bind (dsRpt);

			//Set label text to report output
			lblReport.Text = oReport.Execute();
		}
	}
}