Binding to IEnumerable<T>

[Greg St.Pierre]

Hello all,

I have a windows form with a grid that displays items that can be selected by the user using check boxes. Each item has zero or more sub-items attached to them. I would like to let the user select the main items from the grid then have a report that displays all the sub-items that were attached to the selected items.

I have tried creating an ObjectDataSource using the Report Designer with no success. I have tried to manually data bind the report by programmatically setting the DataSource of the report to an IEnumerable<SubItem> that I have created. In this case I set the expressions for the textboxes in the report to [=Property1] where Property1 is a public property of the SubItem class. This gives me a row for each item in the IEnumerable<SubItem> list but instead of displaying the value of the properties it prints [=Property1].

Is it possible to use the reports in this way? If so how? Thanks in advance.

[Steve]

Hi Greg St.Pierre,

You can bind to collection properties by using a separate Data Item (i.e. report, table, chart) e.g. you can use the Bindings property. This way you can bind declaratively the DataSource property of a data item to a given collection property from your business object and the data item will display all the collection items. To illustrate this approach better I have attached a small sample report to my post. If you need more information regarding this you can visit the following help topic from our online documentation which discusses property bindings via expressions more in-depth.

Kind regards,
Steve
the Telerik team