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Limit the length of a string using DataTextFormatString

Posted on 2006-11-13
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Last Modified: 2008-01-09
Hi,

I am binding a dropdown box to a datareader, I would like to limit the length of the strings because if the string is grater than 25 CHR then it starts to push my formatting on my page around


        Manufacturers.DataSource = ManuReader
        Manufacturers.DataTextField = "SupplierName"
        Manufacturers.DataTextFormatString = HERE IS THE PROBLEM
        Manufacturers.DataBind()

I know I can loop through the datareader and use left(STRING,25)  but I would like to know if I can use DataTextFormatString

Thanks
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Question by:bhermer
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7 Comments
 
LVL 9

Expert Comment

by:kraffay
ID: 17933844
The easiest way would be to change your SQL to only return the first 25 characters of the field with SUBSTRING function.

DataTextFormatString is for numeric formatting.
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LVL 3

Expert Comment

by:Birdbuster
ID: 17934730
So what should the format do when its longer then 25 characters, that what i dont' understand???

This will code will make it so the dropdown is 25 characters long.
Manufacturer.Width = 25;
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LVL 4

Author Comment

by:bhermer
ID: 17936931
kaffay, What would my SQL look like? currently it is

SELEC DISTINCT SupplierName From Products ORDER By SupplierName ASC


BirdBuster, When over 25 CHr long I would truncate to read  "phillips semi cond..." or similar. I tried setting the width iof the combo box, but it resizes it when you put a 50 CHR string in it and as it is in my Nav bar on the l;eft of my page it pushes all my tables about.

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LVL 96

Expert Comment

by:Bob Learned
ID: 17937623
What is the database type?  SQL Server?  Access?

Bob
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LVL 4

Author Comment

by:bhermer
ID: 17938270
MySQL
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LVL 96

Accepted Solution

by:
Bob Learned earned 2000 total points
ID: 17939018
Depending on the version of MySQL, you should be able to do something like this:

SELECT SUBSTRING(Field1, 1, 25) AS Field1

   or

SELECT LEFT(Field1, 25) AS Field1

Bob
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LVL 4

Author Comment

by:bhermer
ID: 17951269
Thanks Bob, that worked great!
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