Passing Arguments to an AJAX Callback?

[mvaughn]

I have an xbasic function that I am trying to pass an argument to via an ajax callback.
Basically, I just want one button to determine which function to call from the switchboard.
Sounds simple but I keep getting the error:

Error executing Ajax callback function 'switchboard' Error reported was: Variable is of different type

The function:

function switchboard as c (circuit as c, e as p)

DEBUG(1)

dim global cn as SQL::Connection
dim global rs as SQL::ResultSet
dim global args as SQL::Arguments
dim global sqlStatement as c	
dim global clientid as n = convert_type(e._currentRowDataNew.APPLICANTID,"n")
dim global itemcode as n = convert_type(e._currentRowDataNew.ITEM_CODE,"n")
dim global arr_data[0] as p
dim global content as c
dim global reportHtml as c
dim global x as n = 0
dim global fldr as c = "C:\a5v11\A5Webroot\reports"
dim global vfile as c = remspecial(api_uuidcreate()) + ".htm"
dim global path as c = fldr + "\\" + vfile
dim global js as c = "redirectUrl('http://ablejobs.us/reports/"+vfile+"');"
dim menu as c = circuit
cn.open("::name::adam")

select
	case menu = "criminal"
		CriminalReport(e)
	case menu = "screened"
		ScreenedWorkHistory(e)
	case menu = "unscreened"
		UnscreenedWorkHistory(e)
	case menu = "resume"
		makeResume(e)
	case menu = "archive"
		set_archive_on(e)
	case menu = "delete"
		deleteRecord(e)
end select

cn.close()
end function

The Callback:

var rowNum = {Grid.RowNumber};
var id = {grid.Object}.getValue('G','ITEM_CODE',rowNum);
var numID = Number(id);
if(numID > 299)
     {
         {grid.Object}.ajaxCallback('G','{Grid.RowNumber}:all','switchboard','','_getData=true&'+'circuit=criminal',{});
     }
     else if (numID == 150)
     {
         {grid.Object}.ajaxCallback('G','{Grid.RowNumber}:all','switchboard','','_getData=true&'+'circuit=screened',{});	
     }
     else if (numID == 140)
     {
         {grid.Object}.ajaxCallback('G','{Grid.RowNumber}:all','switchboard','','_getData=true&'+'circuit=unscreened',{});
     }
     else if (numID == 125)
     {
         {grid.Object}.ajaxCallback('G','{Grid.RowNumber}:all','switchboard','','_getData=true&'+'circuit=resume',{});
     }

Is there a better way to do this?

[mumfie]

Re: Passing Arguments to an AJAX Callback?

Sounds simple but I keep getting the error:

I've not tested your example but the error is likely due to the xBasic function prototype which should be
function switchboard as c (e as p)

the variable circuit should be available inside e. variable
You can use the debugger to confirm it exists.

[mvaughn]

Re: Passing Arguments to an AJAX Callback?

Thank you, Colin. I knew there had to be a way around this. I wasn't aware that inline javascript variables are available outside of its function.

[aburningflame]

Re: Passing Arguments to an AJAX Callback?

I think theyre available as Request.Variables.circuit
TRy

dim circuit as C=Request.Variables.circuit

[Steve Wood]

Re: Passing Arguments to an AJAX Callback?

I happened to be looking for help in this area, confirmed that it is as Scott says, example:

CLIENT SIDE EVENT
if (1=1)
{
{grid.Object}.ajaxCallback('G',rowNum,'canEdit',"","_canEdit=N")
}
else
{
{grid.Object}.ajaxCallback('G',rowNum,'canEdit',"","_canEdit=Y")
}


XBASIC FUNCTION
function canEdit as c (e as p)
debug(1)
dim _canEdit as c = request.variables._canEdit
if _canEdit = "N"
session.canEdit = "N"
else
session.canEdit = "Y"
end if

end function

[aburningflame]

Re: Passing Arguments to an AJAX Callback?

May want to check eval_valid("Request.Variables.circuit") to see if it exists first. But in some cases where you KNOW the variable will always be provided I guess omitting the check is okay. Doesnt hurt to check.
Here is a small sample:

if eval_valid("Request.Variables.var") then
'do stuff
else
'invalid request
end if

[Steve Wood]

Re: Passing Arguments to an AJAX Callback?

Yes you are correct, my code needs to check that the variable exists, else it could fail.