binding subreport through constructor

[Mark]

Hello

I have a masterreport containing a subreport i need to bind to a quoteobject.



My masterreports datasource are set via an overloaded contructor like:

        public masterreport(string P1, string P2)
        {
            InitializeComponent();

            //set masterreport datasource  (Works fine)

            Quote q = new Quote(​P1, ​P2);
            this.DataSource = q;

            //load subreportcontrol   (doesent work!)

            this.subReport1.ReportSource = new BackEnd.Reports.mysubreport(q);

        }

 

  my subreports overloaded constructor looks like :

        public subreport(Quote ​q)
        {
            this.DataSource = ​q.cfgs;  //cfgs is List<quotelines>    
        }



The masterreport is loaded into a reportviewer using :

 this.ReportViewer1.ReportSource = new BackEnd.Reports.masterreport("param1","param2");



Result is ok regarding the masterreport, where as the subreport doesent load.
The subreport works fine if I bind a datasource in the designer.

Should the above not work for binding the subreport, or have i missed something?


any inputs are welcome

Regards  
MArk

[Nasko]

Mark,

Modifying the default parameterless constructor of the report is not recommended. To bind the master report to data use the ObjectDataSource Component.

To pass the q.cfg object from the master report to the sub-report, use a Binding to the subreport's data source as described in the How to use the ReportItem.DataObject property in expressions  article.

Regards,
Nasko
Telerik

[Mark]

Thanks for your answer.

I have successfully connected the object to both Master/slave report as you suggest.

However I need to have my object "up close" in the construct​or, to be able to do various tweaks to the report.

I found a flaw in the above code, which resolved the matter. 

"InitializeComponent();" was missing in my subreport constructor.  (sigh!)

Regards

 Mark