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How to replace commas in returned value from sql query before binding to control

Posted on 2011-03-11
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Last Modified: 2012-05-11
I have a query from one DB that is used to populate a listbox.  When the values are bound to the listbox for each value that has a , in it I want to replace it with a ;

This because my listbox is a multi select and if I don't remove those commas on the list coming in things are going to get very confused.
Thanks.
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Question by:thamilto0410
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8 Comments
 
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Expert Comment

by:Paul MacDonald
ID: 35111888
If you need to do the replacement in SQL, we might need to know about the back end.  

If you're doing the replacement in VB.NEt you should just be able to
     Replace(value, ",", ";")
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Expert Comment

by:HainKurt
ID: 35111918
similar thing if you iuse it in sql

select replace('Hain,Kurt',',',';')
--> Hain;Kurt
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Expert Comment

by:HainKurt
ID: 35111941
how do you bind it to listbox? if you have something like this

select id, name from mytable

and bind it to selectbox, use id for value, and name for Text

then when you get it back, you will end up with numbers like '1,3,5,8' instead of text... do not use text columns for values...
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Author Comment

by:thamilto0410
ID: 35112114
HainKurt and paulmacd,
I have an oracle backend and when I tried using select replace the codebehind objected.

I thought I could make the change in vb.net I am filling a dataset from an oralcedataadapter and binding to the listbox in codebehind DataValueField, DataValueText and Databind.

When I tried the replace on the datavaluefield ie:  

files_processed.DataValueField = replace("thecolumnfromsql", ",", ";")

That also did not work.  What to do next?
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Expert Comment

by:HainKurt
ID: 35112177
you cannot do it in codebehind liek that

either use sql (update your select statement - i prefer this one, easy)
or
in a loop change all item text

for each i as ListItem in dd.Items
  i.Text=i.Text.replace(",",";")
next
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Accepted Solution

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HainKurt earned 1000 total points
ID: 35112196
do this after data binding... again, if you have control over sql, use sql solution

select id, name from mytable
-->
select id, replace(name,',',';') as name from mytable
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Expert Comment

by:Paul MacDonald
ID: 35112317
[HainKurt] is right:  your best bet is to do the replace in the SQL.  You can do the replace on the individual list items, but that's slow and messy.
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Author Closing Comment

by:thamilto0410
ID: 35124056
Thank you to hainkurt and paulmacd.  I figured out the way to do it in the sql and it is working great.  All you experts rocks.
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