Please recommend some Multi-Column ComboBox control for Winforms application in .net. Better if they are free.
I found Syncfusion - Multi-column-combo-box it can show datagrid which is bound to datasource but it is not free.
EDIT: There is an awesome control used in inFlow Inventroy, please also tell if you know something like this
Controls from other answers and those which I found myself
DevExpress - GridLookUpEdit
DevExpress - LookUpEdit
Infragistics - WinCombo
Syncfusion - Multi-column-combo-box
CodeProject - Auto Complete Multi Column ComboBox
CodeProject - Customizable ComboBox Drop-Down this one is good
CodeProject - Multi Column ComboBox
CodeProject - Flat-MultiColumn Combobox with Autocomplete
CodeProject - Multicolumn Combobox with Additional Format Conditions
CodeProject - Searchable MultiColumn ComboBox with Linked TextBox
Binary Mission - Advanced ComboBox .NET