URGENT! Errormessage when setting datamember on datagrid.

[bloukewer]

Hi guys. When binding a datagrid to an arraylist I receive a message that says: system.argumenterror - cannot create a child list for "EMPLOYEE".

Usually i just say:
datagrid.dataource = arraylistname
datagrid.datamember = nameOfAListElementsType

I've tried the setdatabinding equivalent but it produces the same bad results.

I need to set the datamember because I need to format the columns in the grid.

Anyways, I feel kinda stupid for asking this because I had the same problem about two years ago, but unfortunately I cannot remember how I solved it. (That and the fact that I am supposed to be a hardcore VB.Net entusiast).

 

[bloukewer]

Nevermind, seems that a datagrid cannot bind properly to an arraylist that contains an object-hierarchy. Turns out I had to create viewer-classes and bind to them