TAILIEUCHUNG - Wrox Professional Crystal Reports for Visual Studio NET Second Edition phần 5

*Bố trí gạn lọc giúp đỡ dành riêng cho ngôn ngữ lập trình Visual () trong hộp Help Filter. *Internal Help hiển thị các thông tin ngay trong cùng một IDE window, trong khi External hiển thị thông tin trong 1 window riêng biệt. *Ở phần Startup, chọn Show Start Page | Chapter 4 Speaking of different types of users the next section deals with how to customize the appearance and layout of the viewer itself. So in addition to showing them only the records they want to see you could also give them their own custom viewer with which to view the resulting report. Customizing the Appearance and Behavior of the Report Viewer The CrystalReportViewer class contains all of the properties methods and events that relate to the viewer itself its appearance the methods that are used to make the viewer perform certain actions like refresh or print a report and events that can be used to determine when a particular event such as drill-down or refresh has occurred. To start learning how to work with the viewer we are going to start with the basic properties and move on from there. When previewing your report you may notice that there is a standard set of icons and layout that appears on your viewer by default but you can control most of the aspects of the viewer by setting a few simple properties for the Crystal Report Viewer in the Properties window as shown in Figure 4-16. Figure 4-16 The area at the top of the viewer is the toolbar which can be shown or hidden as an entire object or you can choose to only show certain icons. On the left-hand side is a Group Tree generated by the grouping that you have inserted into your report. The properties that control these general properties are Boolean and are listed below 130 Report Integration for Windows-Based Applications Property Description DisplayBackgroundEdge For showing the off-set edge around your report when previewing DisplayGroupTree For showing the group tree on the left side of the viewer DisplayToolbar For showing the entire toolbar at the top of the viewer All of these properties default to True and you cannot change the position of any of these elements they are fixed in place on the viewer. You can however hide the default toolbar and create your own buttons for printing page .

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