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apostrophes in list box(' /")

Posted on 2002-03-07
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Last Modified: 2008-03-17
I am having problem when comparing the values i requested from a list box which display data from the database.

e.g:

machine =Request.form("selMachine")

<option VALUE ='<%=rs("MACHINE")%>' <%if trim(rsAccessory("MACHINE"))=machine then Response.Write "selected" end if%>><%=rs("MACHINEACCESSORIES")%>
</option>

so if i selected a value from the list box which contained ("), it won't be selected.
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Question by:green_tea
6 Comments
 
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Expert Comment

by:dovholuk
ID: 6849577
apostrophes are a particular problem as they can be used as string delimeters. the best thing to try is instead of using apostrophes ( chr(39) ) in your option statement, use quotes instead ( chr(34) ). such as:
<option VALUE =<%=chr(34) & rs("MACHINE") & chr(34)%>

make sense?

that should fix the issue. if not, let us know...

dovholuk
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Author Comment

by:green_tea
ID: 6849709

machine =Request.form("selMachine")

<option VALUE ='<%=rs("MACHINE")%>' <%if trim(r("MACHINE"))=machine then Response.Write "selected"
end if%>><%=rs("MACHINE")%>
</option>

The value in rs("MACHINE") contained double quotes(") or single quotes(').

for example the value display in list box (from database)
is :Edge Guide (1/4")

-if i don't put <option VALUE ='<%=rs("MACHINE")%>'>
(take note of the single quote)
i will get Edge Guide (1/4 instead of  Edge Guide (1/4")
-with the single quote <option VALUE ='<%=rs("MACHINE")%>'>
i can get Edge Guide (1/4") but when execute the following
<%if trim(rsAccessory("MACHINE"))=machine then Response.Write "selected"
it seems cannot find the right one.
-i suspect the "/'

please help


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LVL 54

Expert Comment

by:nico5038
ID: 6849852
Using special characters like ' and " in strings, the effects normally can be "neutralized" by placing twice the same character iso one.

Nic;o)
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LVL 2

Expert Comment

by:DanielBlais
ID: 6850402
I have corrected the problem like this :

<INPUT TYPE="text" NAME="sTitre" SIZE="40" MAXLENGTH="50" VALUE=<%
delim = chr(34)
if instr(titre, "'") = 0 and instr(titre, chr(34)) > 0 then delim = "'"
response.write delim & cstr(titre) & delim
%>>


What it does, it replace " by ' when the string containt ".  This as an limitation, when the string containt " and '.

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LVL 54

Expert Comment

by:nico5038
ID: 7049535
for green_tea

No comment has been added for the last two months.
So it's time to clean up this TA.
I will leave a recommendation in Community Support that this question is:
 - PAQ'd and pts removed
Please leave any comments here within the
next seven days.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER !

Nic;o)
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Accepted Solution

by:
Mindphaser earned 0 total points
ID: 7070200
moved to PAQ

** Mindphaser - Community Support Moderator **
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