C# Crystal Reports - sub reports
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In this section we are going to generate a sub-report under the main row details.
That is for each row there is a subreoprt for the details.
Here we are going create an order report based on three tables in the database
and show a subreoprt for each row field of Product Name. Here we are using
our earlier program C# Crystal Reports from multiple tables to show the main
Crystal Reports Data , so refer C# Crystal Reports from multiple tables , before
start this section .
Create a Crystal Reports using three tables and select customername , date ,
product and qty . It will explain in detail the previous section C# Crystal
Reports from multiple tables.
Next step is to create a sub report inside the main report. Here we are showing
the Product details in each row of the specified product in the main row.
After create the main report , right click on Crystal Reports designer window
and select Insert-Subreport.
Then you will get the subreport object , drag the object in the designer window
at the down part of the details tab , just below the fields in the details tab. When
you release the mouse you will get a dialogue box asking report name . Enter a
report name , and click the Report Wizard Button .
The wizard shows the table selection screen and select the table . Here in this
case we have to select the Product Table from the list and click next .
Next screen is showing the table , from there select the fields you want to show
the data and click finish. The you will get the sub report main screen again and
select Link tab .
The link tab is making relation with your main Report and subreport . Here we
are linking the productname from main report to the subreport. For that select
Product.Product_name from Available fields.
Accept the other settings as it is in the screen and click ok. Now you can see the
sub report object in the screen , if you want to re-arrange subreport design ,
double click on subreport object then you can design subreport.
Now the designing part is over and the next step is to call the Crystal Reports in
C# and view it in Crystal Reports Viewer control .
Select the default form (Form1.cs) you created in C# and drag a button and a
CrystalReportViewer control to your form .
You have to include CrystalDecisions.CrystalReports.Engine in your C#
Source Code.
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;
Copy and paste the following source code and run your C# project
using
using
using
using
System;
System.Windows.Forms;
CrystalDecisions.CrystalReports.Engine;
CrystalDecisions.Shared;
namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
ReportDocument cryRpt = new ReportDocument();
cryRpt.Load(PUT CRYSTAL REPORT PATH
HERE\\CrystalReport1.rpt");
crystalReportViewer1.ReportSource = cryRpt;
crystalReportViewer1.Refresh();
}
}
}
17. C# Crystal Reports - on demand sub reports
The following program shows how to create a Crystal Report On Demand
Subreport in C#.
All C# Crystal Reports Tutorial in this website is based on the following
database - crystaldb. So before you begin this section , please take a look at the
database structure of crystaldb - Click Here C# crystaldb
If you are new to Crystal Reports and do not know how to create Crystal
Reports from C# , please take a look at the section step by step tutorial for
creating a Crystal Reports from C#.
In the previous section of C# Crystal Reports sub-reports is described how to
insert a subreport in Crystal Reports . In the previous section the sub report is
displayed directly under each row details of main report .
The following section explains how to display subreport when the user click in
a hyper link in the main Crystal Report . In this case the sub report has only a
link to the main Report . That is when the user click the link , then only the
subreport display , it is called On Demand Report .
This section is the continuation of the previous section C# Crystal Reports subreports. Here we are creating a Sub report in Crystal Report and make a link in
the main Crystal Reports for on-demand subreport.
Select the subreport object in the Crystal Reports and right click , then select
Format Object .
