How does the SORT function in ALV grid work?

Hi,
I have a report for which the o/p is displayed in ALV grid format.There is one column in the O/p strcuture which is "No of days".Based on certain conditions,i need to display the value for some of the days as Negative e.g. " - 45".Becasuse of this,I have declared the field for the "No of days" of the type "CHAR".
Now when i sort(using ALV grid SORT function) the list on basis of this column,it doesnt give me the correct o/p.
CAN anyone tell me how do i handle this?I want the list to be sorted correctly on basis of the "No of days" column.
Thanks!

This is your Fourth Cross Posting in last three days on same issue!!
CHAR type column doesnt work for SORT function in ALV grid!
How to sort a column of type CHAR
I dont,ve link for your Fourth Thread on same,though i'm short memory loss.

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Best regards,
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hi Motl,
these are steps to create a button in ALV and trigger an event from it..
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reward points if helpful
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Hi
Let me try to answer. I am a bit confused too.
Hi,
i don't understand how does the class Subject work.
First i will describe how do i understand u can use
the class Subject
This is the way you can create a Subject(i think):
1. create a LoginContext, where u can tell over its
parameter which
Module to use
2. a LoginModule will be used
3. now the LoginModule create a Subject
Correct.if this steps right--> ok, else--> please write how it
really works
Now the questions:
1. Where do the LoginModule get the username and stuff
like this from
to fill the Subjects? Principals?
The Loginmodule does not need the user name. The username is
only relevant to your application not to JAAS. Consider a standaalone
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After you start the application, and login (whatever way), your subject
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permission/grant structure, which determines who can execute what.
>
2. Where will be the Subject save, at server or at
client side?
Again the Subject has nothing to do with your application specific userid. It will be there in the LoginContext. So in a sense a LoginContext is actually a user, not a Subject.
when save on server: how to reference a Subject is
is belong to the
right Client?
when save on client: how to ensure the client do
do not modify it?
In a client server mode, usually the login is done twice. You have to find a way to communicate the subject to the server.3. In the documentation of JavaTM 2 Platform Std. Ed.
v1.4.1, there is
no advice, that the class have any FIELDS, but then
en where the
principals are saved?
4. The Class Subject do not have any methodes to
modify the principals,
so how to modify it if necessary?
I think you can add Principals. That is definitely there.i think this is enough for the beginnig :)
thanx,
edo
Hope this helps. As of now I do not think JAAS provides a very good architecture for authorization.
cheers
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Go to Solution.

Hi Derren,
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Hope this clarifies.
Regards,
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How does the SORT function in ALV grid work?

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