.NODE

Setting Database Credentials

If you have tried to use some of the code samples thus far, you might have found that your reports were failing to run when scheduled. One of the causes of this is a lack of database credentials. Keep in mind that Crystal Reports stores all the connection information for the database inside the report except the password. Therefore, this needs to be set at runtime. The easiest way to do this is to type it in manually in the Crystal Management Console and save it with the InfoObject (shown in Figure 35.4). However, sometimes there are many reports and this manual step becomes unrealistic. In this case, the reports credentials can be set programmatically.

Figure 35.4. Setting database credentials through the Crystal Management Console.

graphics/35fig04.jpg


To set a reports credentials, call the getReportLogons method of the IReport interface. This returns a Crystal Enterprise collection interface called ISDKList. The reason there is a collection of report credentials is that some reports point to multiple data sources that each have their own respective credentials. These reports are rare though, so assume a collection of only one element. Calling the get method returns an IReportLogon interface. Here you can call the setUserName and setPassword methods as shown in the following code:






IInfoObjects results = iStore.query("SELECT * FROM CI_INFOOBJECTS WHERE " +

 "SI_NAME=World Sales Report AND SI_INSTANCE=0");

IInfoObject infoObject = (IInfoObject) results.get(0);

IReport report = (IReport) infoObject;

ISDKList list = report.getReportLogons();

IReportLogon logon = (IReportLogon) list.get(0);

logon.setUserName("username");

logon.setPassword("password");

ISchedulingInfo sched = infoObject.getSchedulingInfo();

iStore.schedule(results);


There are other methods available from the IReportLogon method such as setCustomServerName and setCustomerDatabaseName that enable you to point the report at a different database and server at schedule-time if required.


Part I. Crystal Reports Design

Creating and Designing Basic Reports

Selecting and Grouping Data

Filtering, Sorting, and Summarizing Data

Understanding and Implementing Formulas

Implementing Parameters for Dynamic Reporting

Part II. Formatting Crystal Reports

Fundamentals of Report Formatting

Working with Report Sections

Visualizing Your Data with Charts and Maps

Custom Formatting Techniques

Part III. Advanced Crystal Reports Design

Using Cross-Tabs for Summarized Reporting

Using Record Selections and Alerts for Interactive Reporting

Using Subreports and Multi-Pass Reporting

Using Formulas and Custom Functions

Designing Effective Report Templates

Additional Data Sources for Crystal Reports

Multidimensional Reporting Against OLAP Data with Crystal Reports

Part IV. Enterprise Report Design Analytic, Web-based, and Excel Report Design

Introduction to Crystal Repository

Crystal Reports Semantic Layer Business Views

Creating Crystal Analysis Reports

Advanced Crystal Analysis Report Design

Ad-Hoc Application and Excel Plug-in for Ad-Hoc and Analytic Reporting

Part V. Web Report Distribution Using Crystal Enterprise

Introduction to Crystal Enterprise

Using Crystal Enterprise with Web Desktop

Crystal Enterprise Architecture

Planning Considerations When Deploying Crystal Enterprise

Deploying Crystal Enterprise in a Complex Network Environment

Administering and Configuring Crystal Enterprise

Part VI. Customized Report Distribution Using Crystal Reports Components

Java Reporting Components

Crystal Reports .NET Components

COM Reporting Components

Part VII. Customized Report Distribution Using Crystal Enterprise Embedded Edition

Introduction to Crystal Enterprise Embedded Edition

Crystal Enterprise Viewing Reports

Crystal Enterprise Embedded Report Modification and Creation

Part VIII. Customized Report Distribution Using Crystal Enterprise Professional

Introduction to the Crystal Enterprise Professional Object Model

Creating Enterprise Reports Applications with Crystal Enterprise Part I

Creating Enterprise Reporting Applications with Crystal Enterprise Part II

Appendix A. Using Sql Queries In Crystal Reports

Creating Enterprise Reporting Applications with Crystal Enterprise Part II

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Special Edition Using Crystal Reports 10
Special Edition Using Crystal Reports 10
ISBN: 0789731134
EAN: 2147483647
Year: 2003
Pages: 341
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