Uses the ReportBrowser form in VB.NET

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First, the code crafts the report URL programmatically according to the URL syntax rules that we discussed in section 10.2. We set up the report path, followed by the report parameters and the specified export format. Once the URL string is constructed, we instantiate the ReportBrowser form to render the report using the Microsoft WebBrowser control. Inside the ReportBrowser form, we call the Microsoft WebBrowser control s Navigate method and pass the report URL:
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public void RenderReport(string url){ Object optional = System.Reflection.Missing.Value; webBrowser.Navigate(url, ref optional, ref optional, ref optional,ref optional); }
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At this point the report is displayed. If there are any errors, they are shown in the WebBrowser control. Shelling out to the browser Sometimes you may just need a quick way to show the report in the browser by navigating to the report s URL address. You can do this by simply shelling out the report request to the browser. To accomplish this task, .NET developers can use the Process.Start method to start the application associated with a file extension. When the Shell to IE option is selected on the AccessOptions form, once the report URL is ready, displaying the report in the browser takes one line of code:
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Process.Start ("IExplore", url).
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When you don t need to embed the report in a form, you should consider shelling out to the browser as a more lightweight implementation approach of requesting a report by URL. Now that we have seen how to integrate the Report Server in our WinForm applications, let s examine some practical web-reporting techniques. We refer collectively to our web samples as the Adventure Works Web Reporter, or AWReporterWeb for short. 10.3.2 URL Access with WebForms: AWReporterWeb Once you ve authored your report in RS, there are myriad ways to get it to your webbased users. From an implementation standpoint, you can organize the web reporting techniques into two categories: client-side reporting techniques and server-side reporting techniques. This breakdown reflects the location from which the report request originates. In the case of client-side reporting, the report request is initiated on the client side of the application, for example, by clicking a hyperlink on a page rendered in the browser. Most of the techniques in this category follow the Client-to-Report Server pattern and request reports by URL.
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In the latter case, the report is requested and rendered on the server side of the application, for example, by using ASP.NET server-side code. In general, the techniques under this category follow the Client-to-Fa ade-to-Report Server approach and request reports by SOAP. The AWReporterWeb code examples can be found under the 10 folder in the AWReporterWeb project. Once you request the default.aspx page, you are presented with the drop-down main menu, as shown in figure 10.5. The main menu is implemented as a drop-down menu. The client-side reporting samples can be initiated from the client-side Reporting menu, while the server-side reporting samples can be launched from the server-side Reporting menu.
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We used Peter Bromberg s excellent ASP.NET menu sample to easily integrate his menu control with our web application. The menu items are specified in the menu.xml file. The menu control loads the menu definition and applies an XSLT transformation to render the menu in DHTML. For more implementation details about the menu control, check the Resources section at the end of this book.
Let s now discuss the AWReporterWeb client-side reporting samples in the order in which they appear on the menu.
Figure 10.5 The main menu of the AWReporterWeb project displays two menus: one for the client-side reporting samples and one for the server-side reporting samples. To see the server-side menu items, hover your mouse cursor on top of the Server-side Reporting menu.
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