Lookup Column
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The ExpressQuantumGrid allows you to display data in different formats and to edit the data using an appropriate in-place editor. The type of editor is chosen according to the type of data displayed within a column. For more information on assigning in-place editors, see the Data Editing Using Inplace Editors topic.
One of the most advanced column editors is used for a lookup column. It is capable of displaying data from another dataset (whose key values match those of a field within the View’s dataset).
The editor type corresponding to the lookup column is the LookupComboBox editor. This editor displays lookup values within the edit region and within its dropdown window, activated by the button located at the right side of the editor. The LookupComboBox dropdown window can contain several columns displaying different field values from the lookup dataset. A user can change the width of each column, assign an editor to a column’s contents, enable sorting, etc.
The LookupComboBox editor implements an incremental search feature. The search can be performed when inputting text either in the edit region or within the editor dropdown. If incremental filtering is also activated, the dropdown list is filtered based on the typed characters:
For more information on how to create and use lookup columns, see the Using Lookup Columns topic.