This sample project shows the possibility of creating a report in runtime. After you create a report using the code, you can display it in the WPF viewer. For a start, initialize components and load data for the future report:
private System.Data.DataSet dataSet1 = new System.Data.DataSet();

public Window1()
	StiOptions.Wpf.CurrentTheme = StiOptions.Wpf.Themes.Office2013Theme;
	dataSet1.DataSetName = "Demo";

All necessary actions can be done in the Button_Click() event of the application. In the first place create the new report object, register the data and synchronize it with the report dictionary:
private void Button_Click(object sender, RoutedEventArgs e)
	StiReport report = new StiReport();
	// Add data to datastore
	// Fill dictionary


Then we need to create the report components. First, add the Header Band to the report page with the Text component that will display the title:

	StiPage page = report.Pages[0];
	// Create HeaderBand
	StiHeaderBand headerBand = new StiHeaderBand();
	headerBand.Height = 0.5;
	headerBand.Name = "HeaderBand";
	// Create text on header
	StiText headerText = new StiText(new RectangleD(0, 0, 5, 0.5));
	headerText.Text = "CompanyName";
	headerText.HorAlignment = StiTextHorAlignment.Center;
	headerText.Name = "HeaderText";
	headerText.Brush = new StiSolidBrush(System.Drawing.Color.LightGreen);


Next, add the Data Band with the Text component to which add an expression. This expression combines the Line number and the CompanyName data column from the Customers data source:

	// Create Databand
	StiDataBand dataBand = new StiDataBand();
	dataBand.DataSourceName = "Customers";
	dataBand.Height = 0.5;
	dataBand.Name = "DataBand";
	// Create text
	StiText dataText = new StiText(new RectangleD(0, 0, 5, 0.5));
	dataText.Text = "{Line}.{Customers.CompanyName}";
	dataText.Name = "DataText";


Finally, add the page Footer Band with the Text component which displays the text at the bottom of the page. Last action is a call of the WPF viewer which will build and display the report automatically:

	// Create FooterBand
	StiFooterBand footerBand = new StiFooterBand();
	footerBand.Height = 0.5;
	footerBand.Name = "FooterBand";
	// Create text on footer
	StiText footerText = new StiText(new RectangleD(0, 0, 5, 0.5));
	footerText.Text = "Count - {Count()}";
	footerText.HorAlignment = StiTextHorAlignment.Right;
	footerText.Name = "FooterText";
	footerText.Brush = new StiSolidBrush(System.Drawing.Color.LightGreen);

In the screenshot below you can see the result of the sample code:

Runtime Report Creation