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CHAPTER 4 s REPORTING WITH WINDOWS FORMS
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Figure 4-40. The report design surface after adding report items Table 4-9. Report Item Properties for the Header
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3.075in, 1.8in dsAddressList_dtAddressList =Fields!CustomerName.Value Normal, Arial, 10pt, Bold =Fields!AddressLine.Value =Fields!City.Value + ", " + Fields!StateProvince.Value =Fields!PostalCode.Value + ", " + Fields!Country.Value
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Figure 4-41. The final look of the report design surface
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As you can see in Figure 4-41, we have four address lines. The first line lists the name of the customer, and I changed the style to bold so that the customer name is distinct. For the last two lines, I concatenated the data column values so that related information stays on the same line. All right, that s what we needed as a design for this report. Now, it s the time to move on to writing the C# code.
Step 3: Writing the C# Code
Since that s all we need on the front end of the report design, let s add the following code behind Form1.cs to see the address list report in action: using using using using using using using using using System; System.Collections.Generic; System.ComponentModel; System.Data; System.Drawing; System.Text; System.Windows.Forms; System.Data.SqlClient; Microsoft.Reporting.WinForms;
namespace AddressList { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { //declare connection string, please substitute //DataSource with your Server name string cnString = "Data Source=(local);Initial Catalog=RealWorld; Integrated Security=SSPI;"; //declare Connection, command and other related objects SqlConnection conReport = new SqlConnection(cnString); SqlCommand cmdReport = new SqlCommand(); SqlDataReader drReport; DataSet dsReport = new dsAddressList(); try { //open connection conReport.Open();
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//prepare connection object to get the data //through reader and populate into dataset cmdReport.CommandType = CommandType.Text; cmdReport.Connection = conReport; cmdReport.CommandText = "Select * FROM dbo.AddressList"; //read data from command object drReport = cmdReport.ExecuteReader(); //load data directly from reader to dataset dsReport.Tables[0].Load(drReport); //close reader and connection drReport.Close(); conReport.Close(); //provide local report information to viewer reportViewer1.LocalReport.ReportEmbeddedResource = "AddressList.rptAddressList.rdlc"; // you need to set this to show multi column output in report viewer reportViewer1.SetDisplayMode(DisplayMode.PrintLayout); // set the zoom mode of report viewer to 100% reportViewer1.ZoomMode = ZoomMode.Percent; reportViewer1.ZoomPercent = 100; //prepare report data source ReportDataSource rds = new ReportDataSource(); rds.Name = "dsAddressList_dtAddressList"; rds.Value = dsReport.Tables[0]; reportViewer1.LocalReport.DataSources.Add(rds); //load report viewer reportViewer1.RefreshReport(); } catch (Exception ex) { //display generic error message back to user MessageBox.Show(ex.Message); } finally { //check if connection is still open then attempt to close it if (conReport.State == ConnectionState.Open)
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{ conReport.Close(); } } } } } This code is almost the same as we had in our earlier example. The only change is that we get the data from a different table from the RealWorld database. Having said that, I d like to bring your attention to the following lines of code: // you need to set this to show multi-column output in report viewer reportViewer1.SetDisplayMode(DisplayMode.PrintLayout); // set the zoom mode of report viewer to 100% reportViewer1.ZoomMode = ZoomMode.Percent; reportViewer1.ZoomPercent = 100; We need this code to make sure the report preview shows both the columns. Usually, we use the normal display mode. However, for this report we have set the display mode to PrintLayout. We have also set the zoom mode to percent, and set the percent value to 100. After applying these settings, you can see the report output in ReportViewer as it will appear on a printer or in a PDF and Excel file.
s Note A multicolumn report will not appear correctly if the ReportViewer display mode is set to normal
(the default mode).
Building the Project
It s time to build the project now. You can click the small, green play button in the main toolbox or press F5 on the keyboard to start the application in run-time mode. If the program compiles without any errors, you will see the form with the report in preview mode. Please make sure the report looks similar to Figure 4-35.
s Note Multicolumn report render support is limited to PDF and Excel if you are using ASP.NET Web Forms
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