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Dynamic reports with Microsoft local report engine

, 23 Aug 2006
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An article for local report engine incorporate in MS VS 2005 and generation of dynamic reports

Demo Dynamic's Report

Introduction

In this article I will try to show you the magnificent functionality of the local report engine, which the Microsoft Corporation incorporated in the new version of MS Visual Studio 2005.
Every developer knows very well how important it is to have at one’s disposal a powerful, flexible and user friendly report engine.  It doesn’t matter what type of project we develop, because in 95% of all possible projects, we will need to implement some kind of report functionality. Knowing this fact, Microsoft incorporated in their new version of theMS Visual Studio v.2005 this functionality. The local reports are similar to the Microsoft Reporting Services under MS SQL 2005. A few months ago I wrote an article on  this topic. " The new reporting horizons with Microsoft Reporting Services 2005"  The best options of this local report engine are that when you make local reports you may easily switch to and convert them to "remote" reports and run them as part of the Microsoft Reporting Services engine. Another powerful functionality of the local reports is the possibility to use many data sources in a handy and flexible way. And last, but not least, all this power is free. You do not need to buy or install any additional licenses to support many users or applications. Fantastic, right?

Creating an report's dataset


The test/demo table in design mode   The demo dataset in design mode

Our first task is to create a dataset with all tables and relations, which will be the basis for building our report. We may skip this stage and provide directly our dataset to the report engine, but we need this dataset for our next steps. When we create and design a report, we need to see visually all available tables, their fields and data typeof the tables’ fields. This will make our life as developers easier. For the purpose of the current demo, I will create a simple dataset with only one simple table.  Please forgive me!

Creating an report

Report in design mode

Our next step and task is to create and design for our needs of this demo two simple reports. This can be done by going to the project's folder and by right clicking of the mouse choose "Add a new item" andfrom the list menu selecting an empty report file for creating a report using Microsoft reporting technology. You have to set the name of this new report and location. In our case I will give the name "demoReport.rdlc" and location the "Rdl" folder from my demo project root folder. Also by same way we will create and the second one report. The main purpose is to create two similar reports with a few difference as graphic's types and title for an example. You may see them in subfolder "Rdl/Tamplates".Actually the generated reports from Microsoft report designer are an XML files and you may open them with Notepad. The new in this article unlike the artilce for static reports is " The new reporting horizons with Microsoft reporting technology" that we will use generated reports for tamplates. And next action is to create a new C# method which will generate on fly every time the necessary report. The diffrence is small but very important. Below, I will show you a few important things in my code. If you keep them I promise you that your life will be easier working with Microsoft reporting technology.

//
//Here is code behind Init event of report viewer 
//Initialize the report options always in "Init" event of 
//Report Viewer .............
//
protected void rptViewer_Init(object sender, EventArgs e)
{
    rptViewer.ProcessingMode = ProcessingMode.Local;
    rptViewer.LocalReport.EnableExternalImages = false;
    rptViewer.LocalReport.EnableHyperlinks     = false;
    rptViewer.Visible                          = true;
    rptViewer.ShowBackButton                   = true;
    rptViewer.ShowDocumentMapButton            = true;
    rptViewer.ShowExportControls               = true;
    rptViewer.ShowFindControls                 = true;
    rptViewer.ShowParameterPrompts             = false;
    rptViewer.ShowReportBody                   = true;
    rptViewer.SizeToReportContent              = true;
    rptViewer.ShowToolBar                      = true;
    rptViewer.ShowZoomControl                  = true;
    rptViewer.DocumentMapCollapsed             = true;
}

//
//Here is code behind binding of report
//
protected void rptViewer_DataBinding(object sender, EventArgs e)
{
   string fD            = fromDate.VisibleDate.ToString("dd/MM/yyyy").Trim();
   string tD            = toDate.VisibleDate.ToString("dd/MM/yyyy").Trim();
   DataTable dt         = new DataTable();
   dt                   = GetData();
   //
   // Please notice that ReportDataSet is combination
   // from name of dataset and table/tables
   // in thie dataset "dsReports_myReport" !!!
   //
   string bindDs_name                = "dsReports_myReport";
   string reportName                 = "demoReport.rdlc";
   rptViewer.LocalReport.DisplayName = "Demo Report";
   rptViewer.LocalReport.ReportPath  = "Rdl/" + reportName;
   ReportParameter from_Date         = new ReportParameter();
   ReportParameter to_Date           = new ReportParameter();
   ReportParameter filterFromDate    = new ReportParameter();
   ReportParameter filterToDate      = new ReportParameter();
   from_Date.Name                    = "pFromDate";
   to_Date.Name                      = "pToDate";
   filterFromDate.Name               = "filterFromDate";
   filterToDate.Name                 = "filterToDate";
   from_Date.Values.Add(fD);
   to_Date.Values.Add(tD);
   filterFromDate.Values.Add(fromDate.SelectedDate.ToString());
   filterToDate.Values.Add(toDate.SelectedDate.ToString());
   ReportParameter[] myReportParams  = 
    new ReportParameter[] {from_Date, to_Date, filterFromDate, filterToDate};
   rptViewer.LocalReport.SetParameters(myReportParams);
   if (dt != null)
   {
    rptViewer.LocalReport.DataSources.Clear();
    rptViewer.LocalReport.DataSources.Add(new 
              ReportDataSource(bindDs_name.Trim(), dt));
    dt.Dispose();
   }    
}

//
// Do not forget to include and next name space in using clause
//
using Microsoft.Reporting.WebForms;

Conclusion

As final words, I would like to thank you for your patience and I hope that this article will be really useful to you and will give you the right direction when you try to implement Microsoft reporting technology to build an dynamic report and compare which approach is better for you, to use local reports as you use them as static or dynamic or to use Microsoft Repoting Services. Please download the sources from this article, and take a look.<!----------------------------- Article Ends ----------------------------->

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

About the Author

Dimitar Madjarov
Software Developer (Senior) http://www.uplandsoftware.com/
Canada Canada
Canada, Quebec, Laval,
Currnet position: Senior ASP.NET Developer
Company: Uplandsoftware Inc
Certificates: MCITP, MCP, MCTS

Comments and Discussions

 
QuestionReport Display Name PinmemberMember 1042401124-Nov-13 22:22 
GeneralMy vote of 5 PinmemberAhmadReza 202016-May-13 8:42 
QuestionError! Pinmembermuhtarqong27-Mar-13 10:54 
QuestionIs this limited to VS 2005 and later? Pinmembernolesce24-Sep-09 10:37 
Generaldeploying PinmemberDasiths31-May-09 5:50 
GeneralThank you Pinmembergeealin31-Jan-09 2:06 
Questionhosting Pinmemberkkp10020-Jan-09 3:33 
Questionhelp : ReportGenerator PinmemberMember 73210620-Mar-08 17:29 
QuestionCan it be even more dynamic (with unbound fields)? Pinmemberstrogg18-Oct-07 10:27 
AnswerRe: Can it be even more dynamic (with unbound fields)? PinmemberR V Mishra5-Jan-09 6:45 
GeneralDynamically generate RDLC from DataSet Pinmembernbohr99a8-Sep-07 16:15 
QuestionCalendar Style Pinmemberprometei27-Aug-07 5:18 
Generaldataset question Pinmemberaguidas25-Jun-07 6:40 
GeneralRe: dataset question PinmemberDimitar Madjarov25-Jun-07 21:13 
GeneralThank you very much PinmemberRon Icard23-May-07 2:55 
GeneralRe: Thank you very much PinmemberDimitar Madjarov27-May-07 22:48 
QuestionHow???? Pinmemberfemi ojemuyiwa1-Mar-07 2:51 
QuestionHow do i hide or show columns in Table embeded in rdlc file? PinmemberRaghav200428-Feb-07 23:35 
GeneralUrgent PinmemberSarfaraj Ahmed15-Feb-07 4:57 
GeneralRe: Urgent PinmemberDimitar Madjarov15-Feb-07 20:06 
QuestionCustom Business Entity Pinmembermrmaki27-Jan-07 12:39 
GeneralUrgent PinmemberMember #192833728-Dec-06 11:57 
GeneralRe: Urgent PinmemberDimitar Madjarov28-Dec-06 21:25 
Generalmsg Pinmembervijitha2818-Dec-06 16:55 
GeneralRe: msg PinmemberDimitar Madjarov18-Dec-06 20:14 
QuestionDoes the local report work without session? Pinmemberx2bzhang12-Dec-06 11:24 
AnswerRe: Does the local report work without session? [modified] PinmemberDimitar Madjarov12-Dec-06 21:08 
Questionhow group by records at dataset Pinmemberjafar_mahmoudi23-Sep-06 6:38 
AnswerRe: how group by records at dataset Pinmembervaratha27-Aug-09 11:20 
QuestionHow it works? PinmemberWilliam Ng30-Aug-06 5:53 
AnswerRe: How it works? PinmemberDimitar Madjarov30-Aug-06 8:41 
GeneralRe: How it works? PinmemberWilliam Ng30-Aug-06 13:33 
GeneralRe: How it works? PinmemberDimitar Madjarov30-Aug-06 21:13 
QuestionThis version of report engine allow embeded html? Pinmembercarloscmv28-Aug-06 11:23 
AnswerRe: This version of report engine allow embeded html? PinmemberDimitar Madjarov28-Aug-06 21:29 
GeneralRe: This version of report engine allow embeded html? Pinmembercarloscmv29-Aug-06 5:31 

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