selection of one dropdown from selection from other

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i want to select a dropdown option and cause population of another combobox which is done onthe criteria of first selection.but both are from same table.

I have two tables.i want even second tables details which refer the first table to be displayed on the form..but i dont want to query again and again...

can i do the selection of comboxes in single query without using multiple queries..

Posted 11-Jun-12 21:56pm

gaurish thakkar

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W∴ Balboos, *GHB* · Accepted Answer · 2012-06-12T06:50:00

I suggest you look into using LINQ.

It allows you to manipulate the contents of the comboboxes (i.e, items in memory).

So, selection in first comboBox can be used to create LINQ query to populate second combobox, all using the same data array for input.

As an alternative perspective, load your initial data and manipulate it to fill all of your comboboxes, much like bringing a piece of your original data source into your application.