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Race to Linux - Race 3: Reports Starter Kit using Mono SqlServer/Firebird

, 30 Sep 2005
Reports Starter Kit port to Linux using Mono
RaceToLinuxRace3_src.zip
RaceToLinuxRace3_src
bin
ASPNET.StarterKit.Reports.dll
FirebirdSql.Data.Firebird.dll
Components
BLL
DAL
docs
images
1x1.gif
crosstabnestedcontrols.png
crosstabtotals.png
customers.gif
drilldownnestedcontrols.png
employees.gif
getorderdetails.gif
getorders.gif
hierarchicalpaging.gif
hierarchicalreport.gif
hierarchicalschema.gif
hierarchicalsorting.gif
masterdetaildetails.png
masterdetailsummary.png
masterdetailtables.png
querysample.gif
querysample2.gif
simpleoverview.png
simplesp.png
tabdetail.png
tabheader.gif
tabheader.png
tabnestedcontrols.png
tabularcolorcode.png
tabularextendedprice.png
tabularsorting.png
textshot.gif
viscategorysales.gif
viscategorysales.png
vischartstructure.png
xtabsql.png
global.asax
images
asp.net-reports.gif
background.gif
crosstab.gif
drilldown.gif
grid_background.gif
hierarchical.gif
logo-neg.gif
logo.gif
masterdetail.gif
masterdetails.gif
report-table-bg.gif
simple.gif
spacer.gif
tabular.gif
textalternate.gif
textreport.gif
visual.gif
ReportsCSVS.csproj.webinfo
SourceViewer
1x1.gif
crosstab.src
drilldown.src
grid_background.gif
hierarchical.src
masterdetail.src
simple.src
tabular.src
textreport.src
visual.src
REPORTS.BKP
using System;
using System.Web.UI.WebControls;
using ASPNET.StarterKit.Reports.Components;

namespace ASPNET.StarterKit.Reports
{
	//*********************************************************************
	//
	// Tabular.aspx
	//
	// The Tabular.aspx page shows a basic technique for grouping related data 
	// (in this case, grouping products by category). This is accomplished by nesting a 
	// DataGrid control inside a DataList control. Additionally, this report demonstrates 
	// how easy it is to implement interactive sorting in the report using ASP.NET.
	//
	//*********************************************************************

	public class Tabular : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataList CategoriesList;
		protected System.Web.UI.WebControls.HyperLink PrintButton;
		protected string _styleSheet;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (!IsPostBack)
			{
				// default sort will be by product name
				if (SortField == "") 
					SortField = "ProductName";

				BindList();
			}

			// switches the style sheet based on printer friendly view or not
			if (Request.QueryString["Print"]=="true")
			{
				_styleSheet = "stylesPrint.css";
				PrintButton.Visible = true;
			}
			else 
			{
				_styleSheet = "styles.css";
			}
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		//*********************************************************************
		//
		// The BindList method retrieves the list of categories
		// and then data binds them to the ProductsByCategoryList
		//
		//*********************************************************************

		private void BindList()
		{
			CategoriesList.DataSource = TabularReport.GetCategories();
			CategoriesList.DataBind();
		}

		//*********************************************************************
		//
		// The GetDetails method calls the BLL to retrieve product for a category given
		// a category id.
		//
		//*********************************************************************

		protected TabularReportCollection GetDetails(int categoryID)
		{
			TabularReportCollection detailList = TabularReport.GetProducts(categoryID);

			// do the sorting if there are data returned
			if (detailList.Count > 0) 
				SortGridData(detailList, SortField, SortAscending);

			return detailList;
		}

		//*******************************************************
		//
		// SortGridData methods sorts the datagrid based on which
		// sort field is being selected.  Also does reverse sorting based on the boolean.
		//
		//*******************************************************

		private void SortGridData(TabularReportCollection list, string sortField, bool asc)
		{
			TabularReportCollection.TabularReportFields sortCol = TabularReportCollection.TabularReportFields.InitValue;

			switch(sortField)
			{
				case "ProductName":
					sortCol = TabularReportCollection.TabularReportFields.ProductName;
					break;
				case "UnitPrice":
					sortCol = TabularReportCollection.TabularReportFields.UnitPrice;
					break;
				case "UnitsInStock":
					sortCol = TabularReportCollection.TabularReportFields.UnitsInStock;
					break;
			}

			list.Sort(sortCol, asc);
		}

		//*******************************************************
		//
		// CalculateExtendedPrice event handler is tied to the OnItemDataBound of the Datagrid.
		// It retrieves the unit price and multiplies that to the units in stock to calculate the extended price of a product.
		// The extended price is displayed as the right most column.
		//
		//*******************************************************

		protected void CalculateExtendedPrice(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
		{
			if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
			{
				double unitsInStock = Convert.ToDouble(e.Item.Cells[1].Text);
				double unitPrice =  Convert.ToDouble(e.Item.Cells[4].Text);
				e.Item.Cells[5].Text = string.Format("{0:c}", unitPrice * unitsInStock);

				// format unit price column as currency
				e.Item.Cells[4].Text = string.Format("{0:c}", unitPrice);

				// if there are no units in stock, color the line item as red by changing the style class
				if (unitsInStock == 0)
					e.Item.CssClass = "OutOfStock";
			}
		}

		//*********************************************************************
		//
		// The SortGrid event handler changes the sortfield for the Projects grid 
		// and re-binds it.
		//
		//*********************************************************************

		protected void SortGrid(Object sender, DataGridSortCommandEventArgs e) 
		{
			// change sort field
			SortField = (string)e.SortExpression;

			// re-bind to display new sorting
			BindList();
		}

		string SortField 
		{
			get 
			{
				object o = ViewState["SortField"];
				if (o == null) 
				{
					return String.Empty;
				}
				return (string)o;
			}
			set 
			{
				if (value == SortField) 
				{
					// same as current sort file, toggle sort direction
					SortAscending = !SortAscending;
				}
				ViewState["SortField"] = value;
			}
		}
 
		//*********************************************************************
		//
		// SortAscending property is tracked in ViewState
		//
		//*********************************************************************

		bool SortAscending 
		{
			get 
			{
				object o = ViewState["SortAscending"];

				if (o == null) 
				{
					return true;
				}
				return (bool)o;
			}
			set 
			{
				ViewState["SortAscending"] = value;
			}
		}
	}
}

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About the Author

idepaula
Web Developer
Uruguay Uruguay
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