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<html><head><link rel=stylesheet href=style.css></head><body><div class=SourcePanel style='font-size:12'><pre style='background-color:white'>
<font color= "blue">using</font> System;
<font color= "blue">using</font> System.Web.UI.WebControls;
<font color= "blue">using</font> System.Text;
<font color= "blue">using</font> ASPNET.StarterKit.Reports.Components;
<font color= "blue"></font>
<font color= "blue">namespace</font> ASPNET.StarterKit.Reports
<font color= "blue"></font>{
<font color= "green"> //*********************************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // Visual.aspx</font>
<font color= "green"> //</font>
<font color= "green"> // The Visual.aspx page shows Sales by Category in three different views: </font>
<font color= "green"> // Pie Chart, Bar Graph, and Tabular view.</font>
<font color= "green"> //</font>
<font color= "green"> //*********************************************************************</font>
<font color= "blue"></font>
<font color= "blue"> public class</font> Visual : System.Web.UI.Page
<font color= "blue"> </font>{
<font color= "blue"> protected </font>System.Web.UI.WebControls.DropDownList drpChartType;
<font color= "blue"> protected </font>System.Web.UI.WebControls.DataGrid SalesByCategoryGrid;
<font color= "blue"> protected </font>System.Web.UI.WebControls.Image ChartImage;
<font color= "blue"> protected </font>System.Web.UI.WebControls.HyperLink PrintButton;
<font color= "blue"> protected </font>bool printVersion;
<font color= "blue"> protected </font>string _styleSheet;
<font color= "blue"> </font>
<font color= "blue"> private void</font> Page_Load(object sender, System.EventArgs e)
<font color= "blue"> </font>{
<font color= "blue"> </font>printVersion = Request.QueryString["Print"]=="true";
<font color= "blue"></font>
<font color= "blue"></font><font color= "blue"> if </font>(!IsPostBack)<font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"></font><font color= "blue"> if </font>(Session["ViewSelectIndex"] != null)<font color= "blue"></font>
<font color= "blue"> </font>drpChartType.SelectedIndex = (int)Session["ViewSelectIndex"];
<font color= "blue"></font>
<font color= "green"> // call event to display default view</font>
<font color= "blue"> </font>drpChartType_SelectedIndexChanged(this, new System.EventArgs());
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "green"> // switches the style sheet based on printer friendly view or not</font>
<font color= "blue"></font><font color= "blue"> if </font>(printVersion)<font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> </font>_styleSheet = "stylesPrint.css";
<font color= "blue"> </font>PrintButton.Visible = true;
<font color= "blue"> </font>}
<font color= "blue"></font><font color= "blue"> else </font><font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> </font>_styleSheet = "styles.css";
<font color= "blue"> </font>}
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "blue"> </font>#region Web Form Designer generated code
<font color= "blue"> </font>override protected void OnInit(EventArgs e)
<font color= "blue"> </font>{
<font color= "green"> //</font>
<font color= "green"> // CODEGEN: This call is required by the ASP.NET Web Form Designer.</font>
<font color= "green"> //</font>
<font color= "blue"> </font>InitializeComponent();
<font color= "blue"> </font>base.OnInit(e);
<font color= "blue"> </font>}
<font color= "blue"> </font>
<font color= "green"> /// <summary></font>
<font color= "green"> /// Required method for Designer support - do not modify</font>
<font color= "green"> /// the contents of this method with the code editor.</font>
<font color= "green"> /// </summary></font>
<font color= "blue"> private void</font> InitializeComponent()
<font color= "blue"> </font>{
<font color= "blue"> </font>this.drpChartType.SelectedIndexChanged += new System.EventHandler(this.drpChartType_SelectedIndexChanged);
<font color= "blue"> </font>this.Load += new System.EventHandler(this.Page_Load);
<font color= "blue"></font>
<font color= "blue"> </font>}
<font color= "blue"> </font>#endregion
<font color= "blue"></font>
<font color= "green"> //*********************************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // The BindGrid method retrieves the list of sales by category</font>
<font color= "green"> // and then databinds them to the SalesByCategoryGrid</font>
<font color= "green"> //</font>
<font color= "green"> //*********************************************************************</font>
<font color= "blue"></font>
<font color= "blue"> private void</font> BindGrid(VisualReportCollection data)
<font color= "blue"> </font>{
<font color= "blue"> </font>SalesByCategoryGrid.Visible = true;
<font color= "blue"> </font>SalesByCategoryGrid.DataSource = data;
<font color= "blue"> </font>SalesByCategoryGrid.DataBind();
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "green"> //*********************************************************************</font>
<font color= "green"> //</font>
<font color= "green"> // The drpChartType_SelectedIndexChanged event handler gets the sales data and changes the view.</font>
<font color= "green"> //</font>
<font color= "green"> //*********************************************************************</font>
<font color= "blue"></font>
<font color= "blue"> private void</font> drpChartType_SelectedIndexChanged(object sender, System.EventArgs e)
<font color= "blue"> </font>{
<font color= "green"> // retrieve the sales data </font>
<font color= "blue"> </font>VisualReportCollection visualReport = VisualReport.GetCategorySales();
<font color= "blue"> </font>
<font color= "blue"></font><font color= "blue"> if </font>(drpChartType.SelectedItem.Value != "Table")<font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> </font>StringBuilder xValues = new StringBuilder();
<font color= "blue"> </font>StringBuilder yValues = new StringBuilder();
<font color= "blue"> </font>int rowCount = visualReport.Count;
<font color= "blue"> </font>int i = 1;
<font color= "blue"></font>
<font color= "green"> // convert data to comma delimited stringbuilders</font>
<font color= "blue"> </font>foreach (VisualReport dr in visualReport)
<font color= "blue"> </font>{
<font color= "blue"> </font>xValues.Append(dr.CategoryName);
<font color= "blue"> </font>yValues.Append(dr.Sales);
<font color= "blue"></font><font color= "blue"> if </font>(i < rowCount)<font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> </font>xValues.Append("|");
<font color= "blue"> </font>yValues.Append("|");
<font color= "blue"> </font>}
<font color= "blue"> </font>i++;
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "green"> // attach image generator to image</font>
<font color= "blue"> </font>ChartImage.ImageUrl = "ChartGenerator.aspx?" +
<font color= "blue"> </font>"xValues=" + xValues.ToString() +
<font color= "blue"> </font>"&yValues=" + yValues.ToString() +
<font color= "blue"> </font>"&ChartType=" + drpChartType.SelectedItem.Value.ToLower()+
<font color= "blue"> </font>"&Print=" + printVersion.ToString();
<font color= "blue"> </font>
<font color= "blue"> </font>ChartImage.Visible = true;
<font color= "blue"> </font>SalesByCategoryGrid.Visible = false;
<font color= "blue"> </font>}
<font color= "blue"></font><font color= "blue"> else</font><font color= "blue"></font>
<font color= "blue"> </font>{
<font color= "blue"> </font>BindGrid(visualReport);
<font color= "blue"> </font>ChartImage.Visible = false;
<font color= "blue"> </font>}
<font color= "blue"></font>
<font color= "blue"> </font>Session["ViewSelectIndex"] = drpChartType.SelectedIndex;
<font color= "blue"> </font>}
<font color= "blue"> </font>}
<font color= "blue"></font>}
</pre>
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