Combo box duplicate values

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I have a combo box in which i am populating a text value which is associated internally with unique ID. But the text value could be repeated. Say my combo has "AA" followed by "AA". The first "AA" is internally bound to ID - 1 and second "AA" to ID-2.My problem is when I select second "AA" and again click on drop down arrow of combo, by default it selects the first "AA". But I want second "AA" to be selected.

Posted 5-Jan-11 0:55am

Developer_2010

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Hiren solanki 6-Jan-11 1:56am

That's a very good question, I don't know why people is downvoting it.
If you will see my answer you will find same question discussed in Forum before, and it was formatted correctly, but you've just missed to present it and it's a very good information question for whom not aware of it still. :)

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Hiren solanki · Answer 1 · 2011-01-05T01:15:00

Solution 5

Oh thats problem in combobox with duplicate text, it's discussed quite few time, see HERE[^].

The ASP.NET ComboBox is using the item value as an identity property for selected item. This is by design. for good practice Avoid using items with duplicate values.

Posted 5-Jan-11 1:15am

Hiren solanki

Comments

Sunasara Imdadhusen 5-Jan-11 7:22am

Good call!

Ian Write 7-Jan-11 5:36am

Good call Hiren.

adocas · Answer 2 · 2011-01-05T01:01:00

Solution 1

The combobox have a Property Called DisplayMember in that you specify what value of datasource shows.

Did you inform it?

Posted 5-Jan-11 1:01am

adocas

Sunasara Imdadhusen · Answer 3 · 2011-01-05T01:04:00

Solution 2

You can use

C#

ComboBox1.SelectedValue = 1; //instead of SelectedText

Thanks,
Imdadhusen

Posted 5-Jan-11 1:04am

Sunasara Imdadhusen

Comments

Hiren solanki 5-Jan-11 7:16am

you haven't got question properly. but I haven't downvoted you.

nagendrathecoder · Answer 4 · 2011-01-05T01:06:00

Solution 3

set SelectedIndex of the ComboBox using ValueMember and not using DisplayMember.

Posted 5-Jan-11 1:06am

nagendrathecoder

Manas Bhardwaj · Answer 5 · 2011-01-05T01:12:00

Solution 4

Leave alone the technical implications, it does not make sense to have combo box with two identical options. Does it?

Posted 5-Jan-11 1:12am

Manas Bhardwaj

Developer_2010 · Answer 6 · 2011-01-05T17:59:00

Solution 6

I agree that its not good practice to have repeating items in combo, but these are not completely duplicate items, these items Text is duplicating but internally they are linked with separate identity.

Posted 5-Jan-11 17:59pm

Developer_2010