Business Object Binding Error

[Lorenzo]

Hi

I configure the report with no DataSource and the following NeedDataSource event:

 

	private void AnalisiSconfinamenti_NeedDataSource(object sender, EventArgs e)
	{
	WSClass ws = new WSClass();
	List<Analisi> elenco = null;
	elenco = ws.analisi(9, new DateTime(2008, 5, 20), new DateTime(2009, 5, 20));
	(sender as Telerik.Reporting.Processing.Report).DataSource = elenco;
	}

 

 

The method ws.analisi is the following

 

	public List<Analisi> analisi(int id_cliente, DateTime fromData, DateTime toData)
	{
	UnicaDataContext db = new UnicaDataContext();
	//linq query to db
	var elencoFC = from e in db.Analisis ............
	return elencoFC.toList();
	}

When I preview the report I have the follow error:

Object reference not set to an instance of an object.

Where is the problem?

Thanks
Lorenzo

[Steve]

Hello Lorenzo,

Are you able to bind a datagrid control with the datasource you've provided successfully? If this is the case please provide us with a sample runnable project, where we can observe the erroneous behavior and we would be able to advise you accordingly.

Best wishes,
Steve
the Telerik team

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