How can I create Session vars from data sent by Ajax Callback in Javascript event?

[Fulltimer]

I have an OnRowSelect event which contains the following Ajax Callback:

{grid.Object}.ajaxCallback('G',rn,'make_nu_session_vars' ,'','td1=' + tdate1 + '&tac1=' + mytact1 )

tdate1 and mytact1 have valid data stored to them, verified by temporarily displaying value in ALERT function.

My Xbasic function 'make_nu_session_vars' is formed correctly, at least it will send back a javascript alert msg (no problem).

My problem is I want to store 'td1' and 'tac1' to Session vars in my 'make_nu_session_vars' Xbasic function.

Can't quite figure that out. Please help. Your assistance will be most appreciated.

[aburningflame]

Re: How can I create Session vars from data sent by Ajax Callback in Javascript event

Those variables are passed as request variables. In your xbasic function, there should be an e.datasubmitted, or an e.rv, you can do something like

if eval_valid("e.rv.td1") .and. eval_valid("e.rv.tac1") then
     session.td1=e.rv.td1
     session.tac1=e.rv.tac1
else
      make_nu_session_vars="alert('Invalid Request');"
end if

If those are not available do this

if eval_valid("Request.Variables.td1") .and. eval_valid("Request.Variables.tac1") then
     session.td1=Request.Variables.td1
     session.tac1=Request.Variables.tac1
else
      make_nu_session_vars="alert('Invalid Request');"
end if

Also, I would just suggest you give meaningfull names to your functions, so instead of make_nu_session_vars, rename it to something like 'SetSessionDateFilter' or whatever your doing
or 'SetSessionTDTact' it makes maintaining your code a lot easier...just a tip.

good luck!

[Fulltimer]

Re: How can I create Session vars from data sent by Ajax Callback in Javascript event

Scott,

Thanks so much for your contribution. Your second code submission was the one that worked for me. I hope to use it in the future when needed. Got me thinking though... Since Alpha gives us {grid.Object}.getSessionVariable(variableName); one would hope they had a similar function for SETTING a Session Var from Javascript- How about : {grid.Object}.setSessionVariable(variableName);

Upon second thought, maybe that would be dangerous.

Tom W.

[aburningflame]

Re: How can I create Session vars from data sent by Ajax Callback in Javascript event

Scott,

Thanks so much for your contribution. Your second code submission was the one that worked for me. I hope to use it in the future when needed. Got me thinking though... Since Alpha gives us {grid.Object}.getSessionVariable(variableName); one would hope they had a similar function for SETTING a Session Var from Javascript- How about : {grid.Object}.setSessionVariable(variableName);

Upon second thought, maybe that would be dangerous.

Tom W.

Your welcome.

I never use the getSessionVariable(variablename) function - didnt even know it existed. I do know.

WHat getSessionVariable/setSessionVariable is doing, is an ajax callback to a generic script that does exactly what your ajax callback is currently doing.
Just gonna have to continue using that method for now.
"Upon second thought, maybe that would be dangerous" - quite possibly yes, depending on what your session variables do. But ya a generic function may be a bad idea. However,
if you think about that, then anyone who knows alpha and XSS (cross site scripting) or other javascript injection techniques can probe your session vars using
the gridobject.getSessionVariable(X), gridobject.getSessionVariable(price) etc etc

Stuff to think about I suppose.
Gluck!