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Posted 17 Apr 2005

Look-up ComboBox

, 6 May 2005
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The article contains LookupComboBox control.


.NET Framework 1.1 has a wide variety of visual components available for Windows Forms applications. Anyhow there is no ComboBox component with the possibility of look-up data defined in the Items property (or bound DataSource) of ComboBox. This article describes a look-up ComboBox with the ability to find an appropriate item in ComboBox items.


The main good feature of the ComboBox is that the ComboBox has a property AllowTypeAllSymbols. If the property is true you can type any symbols in the ComboBox textbox. The items will be selected according to the first correctly entered symbol. For example, if the ComboBox holds "Item 1", "Item 2", "Test 1", "Test 2", "Combo", "Box" and if you enter "it", Item 1 will be selected. Again, if you enter "itm", "Item 1" will be selected. This way you can continue to enter any amount of symbols.

If AllTypeAllSymbols is false, you will be able to enter only those symbols, that are defined in the string of Items (or bound DateSource) property. For this example you will be able to enter only i, t, c, b as a first symbol. If you enter "i" as a first symbol - "Item 1" will be automatically selected, the second symbol can only be "t", you will not be able to enter any other symbol. "Item 2" will be selected only if you type the whole string "Item 2". The demo application shows this functionality.

Using the code

You can just add lookupcombobbox.dll to your project and use it for any Windows Forms application.


This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

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dotNet Toys
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Comments and Discussions

GeneralMy vote of 2 Pin
imamul.karim25-Nov-10 1:51
memberimamul.karim25-Nov-10 1:51 
GeneralComponent not Visible Pin
pcjd631-Dec-07 5:04
memberpcjd631-Dec-07 5:04 
GeneralAnother Bug Pin
Sebastian P.R. Gingter27-Jun-07 0:37
memberSebastian P.R. Gingter27-Jun-07 0:37 
GeneralNew Bug Pin
chris17512-Feb-07 6:58
memberchris17512-Feb-07 6:58 
GeneralQuestion. Pin
lishe23-Nov-06 21:43
memberlishe23-Nov-06 21:43 
GeneralRe: Question. Pin
nickong8-May-07 23:52
membernickong8-May-07 23:52 
QuestionPossible Bug? Pin
bmcneill028-Jun-06 21:43
memberbmcneill028-Jun-06 21:43 
GeneralAdditional bug found Pin
briannacd7-Jun-05 5:40
memberbriannacd7-Jun-05 5:40 
GeneralBug Pin
Josef Meile2-May-05 1:10
memberJosef Meile2-May-05 1:10 
GeneralRe: Bug Pin
Josef Meile2-May-05 3:28
memberJosef Meile2-May-05 3:28 
GeneralRe: Bug Pin
dotNet Toys4-May-05 23:18
memberdotNet Toys4-May-05 23:18 

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