LookupEidt in Dxgrid giving error 'object must implement Iconvertible'

I am using DevExpress v2010 vol2 for WPF.

I have to use lookupedit in dxgrid when adding/editing iformation in a column of grid.

I dont know why it is giving 'object must implement Iconve开发者_如何学编程rtible' when i am selecting value from LookupEdit.

Could it be that you are having the same problem as the problem posted here at the DevExpress Support Center? If so, it seems that there is a bug in v2010 vol 2.4 which is fixed in v2010 vol 2.5

Set the ValueMember / Displaymember Propertys.