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November 11 2010 5 11 /11 /November /2010 15:42

Crystal and Reporting Services FAQ


Get Interview tutorials and videos on .NET 3.5, 4.0, Crystal,ASP.NET, SQL Server, CAS, Security, WCF, SharePoint, Azure, OOPSand many more on www.questpond.com

Introduction

This FAQ will give you a quick start for two report giant’s crystal and reporting services.
If you find this article useful or you think I need improvements please send me a message at http://www.questpond.com  . I will definitely consider your suggestions for better improvements.

 

How do we access crystal reports in .NET?


Crystal reports comes with Visual studio setup itself. Right click the solution explorer à add new item and you can see a crystal report template as shown in figure ‘Crystal report template’. You can add an ‘.rpt’ file using this template.



Figure 1:- Crystal report template


What are the various components in crystal reports?

There are four major components in crystal reports Report designer, Reports engine, Report viewer and object models.
Report designer gives a graphical interface to create and modify reports. To view the designer add a new crystal report file and double click on it you should see the report designer as shown in figure ‘Report designer’.



Figure 2 :- Report designer


Reports engine does the formatting and conversion part of crystal reports. It helps convert the contents of reports in word, excel, PDF, HTML and other formats. Report viewers are controls which you can see on the visual studio tool box; you can drag and drop those controls on an ASPX page or windows application to view reports made using crystal. Object models help us manage crystal reports objects during design time and run time.

What basic steps are needed to display a simple report in crystal?


To understand this sample let display a simple report using crystal.
Step1:- Create a web application project.
Step2:- Add new item and select crystal report from the template. This adds a new RPT file in your solution explorer.
Step3 :- Double click on the RPT file click on Crystal reports à Field explorer as shown in figure below. You should see the field explorer toolbar.



Figure 3:- Field explorer toolbar


Step 4 à Right click on ‘Database fields’ on the field explorer à then click on database expert à Expand create new connection à Expand OLE DB ADO à Select Microsoft OLEDB provider for SQL Server ( this depends on what kind of data you want to connect ) à Give the server credentials à Click finish and done.
Step5 à Right click on ‘Database fields’ on the field explorer à then click on database expert à Expand the server , database and select table which you want to add to the report. Below figure ‘Table added in reports’ shows the right pane showing the table added using database expert.




Figure 4 :- Table added in reports


Step 6 à Expand database fields à table ( in this case it is ‘FactCurrencyRate’ table). Now you can drag and drop the fields on the report.


Figure 5 : - Drag fields on the report


Step 7 à We now need to display the report on the ASPX page. For that we need the ‘CrystalReportViewer’ control. So expand the crystal reports section of the toolbar and drag the component on the ASPX page



Figure 6 : - ‘Crystalreportviewer’ control


Step 8:- Now we need to go to code behind and specify the report source. That’s it now compile and run the project you can see your report live in action.



Figure 7 : - Specify the crystal report source


Can crystal reports be published as a web service?


Right click on the ‘RPT’ file and click ‘Publish as web service’ as shown in figure ‘Publish crystal as web service’.



Figure 8 : - Publish Crystal as web service


How do we invoke the crystal report web service?

We can consume the web service as a normal web service in .NET. The easiest way is by using the ‘ReportViewerControl’ and specifying the ASMX URL in the report source property.

How do we add formulas using crystal reports?

To add any formula in crystal report is a three step procedure. Below figure ‘Add formula in crystal report’ shows the three steps in a pictorial format. Step 1 à Go to field explorer and right click and click new formula. Step 2 à Give and name to the formulae and click on ‘Use Editor’. Step 3 à You will be presented with UI which has all the formulas and function.

Figure 9 : - Add formula in crystal report


How do we pass parameters to crystal reports?

Some times we want to accept input parameter and the report works according to the parameter. To add a input parameter go to field explorer , go to parameter fields , right click , create parameter and you should be popped with a dialog box as shown in the figure ‘Parameter field’. Give a name to the parameter , type and that’s it you are in action.

Figure 10 :- Parameter fields


How do we export from crystal reports?

There are two way of using the export option one is when we display a report using crystal report viewer you can see a export icon as shown in figure ‘Export’ below. You can the select in which format you want to export.

 

Figure 11 : - Export


Second option is through coding. Below is a simple code snippet which shows how we can export a report. Create a object of the crystal report and call the ‘ExportToDisk’ method specifying in which format you want to export.

Dim Report as New CrystalReport1
Report.ExportToDisk(CrystalDecisions.Shared.ExportFormatType.WordForWindows,"c:\my.doc”)
 

How do we print to printer using crystal?

In print we have two ways by which we can print one is when you display the report using crystal report viewer you have a print option and second is by code. Below is a simple code snippet which shows how we have created a object called as report from the rpt file , specified the printer name , paper size and then called the ‘PrintToPrinter’ method.

Report.PrintOptions.PrinterName = "MyPrinter"
Report.PrintOptions.PaperSize = CrystalDecisions.Shared.PaperSize.PaperA4
Report.PrintOptions.PaperOrientation = CrystalDecisions.Shared.PaperOrientation.Landscape
Report.PrintToPrinter(1, True, 1, 3)
 

How do we generate cross tab reports?

When we go for creating a new report you can see the cross –tab option.


Figure 12 : - Cross tab reports
 

How can we do grouping in crystal?

For grouping in crystal you need to use the group expert wizard.

Can you explain three-pass reporting which crystal report uses?


Crystal report uses the three pass method for parsing reports. Before we understand what does it means lets define what is a pass ?. Pass is a process used by crystal reports to read and manipulate data as per the report format. Below figure ‘Three pass method’ shows how the parsing happens. Let’s understand the same step by step. In Pre-Pass1 crystal report engine evaluates constants like x=1 and pie=3.14 for a report. Pass 1 does two important things get data from the database and sort records with given conditions. Once this is done it’s saved in memory and given to pre-pass2 for further parsing and manipulation. Pre-pass2 is all about grouping and sorting the records according to conditions specified in the crystal report. Pass 2 formats a report, applies condition and groups them. Pass 3 is the final tunnel it just counts the pages and generates reports.




Figure 13 :- Three pass method
 

Can you explain reporting services architecture?

Reporting services is mainly used to generate reports. Below are the main components of reporting services as shown in figure ‘Reporting Services Architecture’. Reporting services has four major components Client, Web services, report server/manager and reporting services database. Let’s understand all the major components and the sub components of the same.


Figure 14 : - Reporting Services Architecture


Client: - These are the consumers of reporting services functionality. It can be the report manager or report server (we will discuss report server and manager in more details further) or ASPX and windows application.

Reporting Web service: - Microsoft chose XML to expose the functionality of reporting services. So all the functionality is exposed through web services. One of the most important gains for a web service is that it can be platform independent.

Report server / manager: - Report server and manager forms the core engine of reporting services. They two important systems one is ‘Report processor’ and the other is

‘Scheduling and Delivery processor’.
Reporting processor is the main driver to deliver reports. They take request from the end user and process the report and send it to the end client. Figure ‘Report Processor’ shows how the flow moves. We have seven basic steps which can help us understand in more detail how the report processor works. Step 1 à Any client like ASPX or windows application will request to the web service for reports. Step 2 and 3 à Web service will forward the request to the report processor and get the report definition from the report server DB. Step 4 à Reporting services uses the security extensions to authenticate the end user. Step 5 à Data processing extension calls queries the application database to get data. With data processing extension we can connect to standard data sources like SQL Server, ODBC, Oracle etc. You can also extend the data processing extension to adapt it to some custom data processing extension. Step 6 à Rendering extension then renders the report applies format and sends the same to the end client. Using rendering extension you can deliver reports in Excel, PDF, HTML, CSV and XML. You can also extend the rendering extension to deliver in custom formats.



Figure 15 : - Report Processor


The second system is ‘Scheduling and Delivery processor’. Delivery extensions makes reports with the specified format and sends the same to an output target like file, email, FTP etc. Scheduling and delivery processor does two important steps schedules reports and delivers them the same to a output like FTP,Email etc. Schedule and delivery processor using delivery extension to deliver reports to the defined output. So users can subscribe to the reports and depending on these subscriptions the delivery is done by schedule and delivery processor. There are two steps in this one is the subscription process and the other is deliver process. Lets first try to understand the subscription process. There are three steps basically:-
Step 1 à First is the requests a subscription to the report.
Step 2à This subscription is then stored in the report server DB.
Step 3 à A new SQL Server agent is created for this subscription. So we have completed the subscription process.




Figure 16 : - Subscription process


Now that the subscription is created lets see how the delivery process works. Here are five basic steps in delivery process. Step 1 à When the event occurs SQL Server agent makes an entry in the report server DB. Step 2 and 3 à RS windows service keeps polling SQL Server for any events. If a event has occurred it gets the event from the database and sends a message to the ‘Scheduling and Delivery Processor’. Step 4 à The report is then processed by the report processor and sent to the delivery extension who finally delivers it on a output which can be a email address, folder, FTP or any other kind of output.



Figure 17 : - Delivery process


Reporting Services Database:- When you install reporting services you will see two databases ‘ReportServer’ and ‘ReportServerTempDB’.’ReportServer’ database contains report definitions, schedule, subscriptions, security details and snapshots. ‘ReportServerTempDB’ stores temporary information like session state about reports which is needed in between HTTP requests and report cache information. Please note snapshots are stored in reportserver and not in tempDB.

Figure 18 :- Databases of reporting services

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ADO.NET interview questions: - Show difference between “Optimistic” and “Pessimistic” locking and how many ways are there to implement optimistic locking in ADO.NET?

.NET interview questions: - Does code contract only do dynamic checks?

ADO.NET interview questions: - How can we fire a simple SQL Statement using ADO.NET?

.NET interview questions: - What basic steps are needed to display a simple report in crystal?

ADO.NET interview questions: - What are basic methods of Data adapter and mention the use of data adapter?

.NET interview questions: - What is UML? How many types of diagrams are there in UML?

.Net Interview Questions - What is MVC, MVP and MVVM pattern?

.NET interview questions: - How can you define a property read only for external world and writable in the same assembly?

Explain the implicit and explicit conversion of data types with examples?( .NET interview questions on data type)

.NET interview questions: - What is Reflection its implementation and practical uses?

What is downcasting and upcasting? (.NET interview questions with answers)

.NET interview questions: - How to decide on the design consideration to take a Data grid, data list or repeater?

.NET interview questions: - If we want to update interface with new methods, what is the best practice?

.NET interview questions: - How does selection sort algorithm works?

XML(.NET) interview questions: - What is XML?

.NET Interview questions: - If a validation is very complex what will you do?

.NET interview questions: - How can we stop the class from further inheriting?

XML (.NET) Interview questions :- Explain simple Walk through of XmlReader.

.NET interview questions : - How can we improve performance of .NET and show the difference between .NET 1.X, 2.0, 3.0, 3.5 and 4.0?

How to convert string to ENUM value ?( .NET interview questions with answers)

.NET architecture interview questions series: - What is mean by modeling language?

.NET architecture interview questions : - What are benefits and Limitation of using Viewstate, hidden frames and Cookies?

.NET interview questions: - What is GAC (Global Assembly Cache)?

.NET interview questions: - Explain Nuget?

.NET Testing interview questions: - What is the difference between Unit testing, Assembly testing and Regression testing?


.NET interview questions: - What is Code Access Security (CAS) and how does it work? Is CAS supported in .NET 4.0?


.NET interview questions: - What are the advantages /disadvantages of lazy loading?


.NET interview questions: - What is the use of DEBUG directive?


.NET testing interview questions: - What is Mock testing and how to implement it?


.NET interview questions: - What is the difference between DEBUG and Release?


.NET testing interview questions: - How can we UNIT test private methods using VSTS? Is it good to practice to UNIT test Private methods?


Explain 3 layer architecture ( .NET Interview questions)?


.NET interview questions : - What is a delegate and how can we create a delegate? What is a multicast delegate?


ADO.NET interview questions: - How to add/remove row is in “Data Table” object of “Dataset”? How to load multiple tables in a Dataset & adding relation between tables in a Dataset?


What is the difference between Array, ArrayList and List?( .Net Interview questions)

.NET interview questions: - How to implement DTC in .NET?
.NET interview questions: - What is an Interface and what are abstract classes

.NET interview questions: - Interface vs. abstract class

.NET interview questions: - How to implement practically Lazy loading in .NET?


.NET interview questions: - How can we handle exceptions in .NET? What if we do not catch the exception?

.NET interview questions based on Projects.


.NET interview questions: - What is shadowing? What is the difference between Shadowing and Overriding?

.NET interview questions: - All about Design Patterns in .NET


.NET interview questions: - How can we improve performance of .NET/ASP.NET/SQL Server?

.NET interview questions: - What benefits does sealed keyword provide?


.NET Architecture UML interview question


.NET interview questions: - How to maintain performance and can clean unmanaged objects?


.NET interview questions: - Explain ENUM and its benefits? What is the use of Flagsin ENUM?

.NET interview questions: - How to create a windows service using .NET?

.NET interview questions: - Explain in details about Indexer and can we have static indexer in C#?

.NET interview questions: - What is the difference between arraylist and list? Are Arraylist faster or Arrays?

.NET interview questions: - What is Native Image Generator (Ngen.exe)? Does NGEN.EXE always improve performance?

.NET OOPS interview questions: - What is OOP? What are different properties provided by Object-oriented systems?

.NET OOPS interview questions: - How abstract with only abstract method is it different from interfaces? Also mention best practice to update interface with new methods?

.NET interview questions: - What is the difference between delegate and events? Can we have return type, access modifiers and shared events?

.NET interview questions: - What is Manifest? Where is the version information stored of an assembly? Is versioning applicable to private assemblies?

.NET Generics interview questions: - Explain Generics and concept of Generic Collection in .NET?

How to learn .NET: - In parent-child relationship which constructor will fire first and in which instances you will declare a constructor private?

Basics of .NET and learning tutorials on CTS and CLS


Online resource to learn .NET on Reflection and Dynamic

Online guide to learn .NET for Object initializer in C#?

QuestPond for Freshers on IL code, JIT, CLR, CTS, CLS and CAS

QuestPond: Interview Questions and Answers on AJAX and how does it help?



ASP.NET Interview Questions & Answers Article










MVC Interview Questions And Answers Article

 

(MODEL VIEW CONTROLLER)MVC INTERVIEW QUESTIONS AND ANSWERS

 

MVC INTERVIEW QUESTIONS WITH ANSWERS VIDEO: – WHAT IS WEB API HOW TO IMPLEMENT THE SAME?

 

ASP.NET MVC  4 INTERVIEW QUESTIONS WITH ANSWERS: - WHAT IS BUNDLING AND MINIFICATION IN MODEL VIEW CONTROLLER ?

 

MVC INTERVIEW QUESTIONS WITH ANSWERS :- IS IT POSSIBLE TO RETURN VALUES INSTEAD OF ACTIONRESULTS?

 

MVC INTERVIEW QUESTIONS WITH ANSWERS :- WHAT ARE THE ACTIONRESULTS AVAILABLE IN MVC?

 

MVC INTERVIEW QUESTIONS WITH ANSWERS:-HTML.PARTIALVSHTML.RENDERPARTIALVSHTML.RENDERPAGE IN MVC

MVC VS ASP.NET ( MVC INTERVIEW QUESTION WITH ANSWERS )?

 

HOW CAN WE DETECT THAT A MVC CONTROLLER IS CALLED BY POST OR GET ? ( ASP.NET MVC INTERVIEW QUESTIONS WITH ANSWERS)

 

WHAT ARE THE DIFFERENT WAYS BY WHICH YOU WILL GET FORM DATA IN CONTROLLER? ( MVC INTERVIEW QUESTIONS WITH ANSWERS)

 

WHAT IS THE DIFFERENCE BETWEEN PRESENTER AND CONTROLLER IN MVC?(MVC INTERVIEW QUESTIONS WITH ANSWERS)

 

LEARN MVC (MODEL VIEW CONTROLLER) STEP BY STEP IN 7 DAYS – DAY 4

 

MVC Interview questions and answers PDF

 

MVC interview questions with answers

 

ActionResult vs. View() vs. ViewResult :- MVC interview questions with answers

Explain Areas in MVC?( MVC interview questions with answers)

 

Can you explain the purpose of ViewModel in MVC?( ASP.NET MVC Interview questions with answers)

ASP.NET MVC interview questions: - What are Filters in MVC?

What are areas in MVC?( MVC Interview questions with answers)

Explain the concept of View Model in MVC? 

Exception Handling in MVC

Explain MVC application life cycle?

100 MVC Interview question PDF download released , Enjoy

How can we use two (multiple) models with a single view?(MVC Interview questions)

MVC HTML.Form vs Ajax.Form – MVC interview questions with answers

Learn Microsoft Business intelligence step by step – Day 1

Can you create TempBag just like ViewBag?( MVC Interview questions)

MVC Unit Testing Unleashed

MVC and .NET learning tutorials for components of MVC and how do you perform unit testing in MVC?

Explain MVC model binders ? ( ASP.NET MVC interview questions)

Explain the difference between layout and master pages ? (MVC Razor interview questions) 


ENTITY FRAMEWORK INTERVIEW QUESTIONS ARTICLE


Windows Workflow Foundation(WWF) interview questions with answers Article

XML Interview Questions With Answers Article


Explain XML,DTD and XSL?(XML interview questions with answers)

HTML 5 Interview questions With Answers Article

HTML 5 interview questions with answers for LocalStorage and SessionStorage

 

How is the page structure of HTML 5 different from HTML 4?( HTML 5 Interview questions with answers)

 

What is datalist in HTML 5 ( ASP.NET HTML interview questions)?

 

What are the different new form element types in HTML 5?( ASP.NET HTML 5 interview questions with answers)

 

What is output element in HTML 5?( ASP.NET HTML 5 interview questions)

 

What is the difference between Canvas and SVG graphics?(ASP.NET HTML 5 interview questions with answers)

 

ASP.NET HTML 5 interview questions on SVG and Canvas

ASP.NET HTML5 interview questions with answers

What are web workers and why do we need them ?( ASP.NET HTML interview questions with answers)

 

Why do we need HTML 5 server-sent events? (ASP.NET HTML interview questions)

How can we add and remove data from local storage?(ASP.NET HTML 5 interview questions)

What is local storage concept in HTML 5? ( ASP.NET HTML 5 interview questions)

What is the difference between local storage and cookies? ( ASP.NET HTML 5 interview questions)

What is WebSQL?( ASP.Net HTML 5 interview questions)

 

What is session storage and how can you create one?( ASP.Net HTML 5 interview questions with answers)

 

What is application cache in HTML5?( ASP.NET HTML 5 interview questions with answers)

ASP.NET HTML 5 Application cache interview questions with answers

 

Explain the term cascading in style sheet ? ( CSS Interview questions)

What is difference between DIV vs SPAN in HTML ?( ASP.Net Interview questions)

HTML 5 Canvas Interview questions: - Canvas in HTML 5.

QuestPond’s interview questions and answers on HTML 5

 

Learn HTML 5 in 3 days – Day 1

 

 

 

Dotnetspider Questions And Answers Article

 

 

What is downcasting and upcasting ? ( .NET interview questions with videos)

 

What is the difference between String vs string? ( C# interview questions) ?

 

 

JAVASCRIPT INTERVIEW QUESTIONS WITH ANSWERS ARTICLE

 


3 IMPORTANT JAVASCRIPT IMPORTANT INTERVIEW QUESTION WITH ANSWERS