e.ajaxcallback = .f. code running on subsequent ajax callbacks.

[jwilliamson]

http://wiki.alphasoftware.com/~alpha...k+Property+V11

Based on reading the document above I believe I should be able to wrap code in if e.ajaxcallbacks = .f. ... end if to have it only run the first time the grid is initialize yet it keeps running on every subsequent search. Maybe I'm misunderstanding the nature of this function.

I have the following code in the OnGridExecuteEvent:

	if e.ajaxCallback = .f. then
	    dim cCurrentYear as c = CYEAR(DATE())
		dim cQueryDayMonth as c = "-01-01"
		dim cShownFilterDayMonth as c = "01/01/"
		e.tmpl.filter_initial = "p.EstSTADate > {" + cCurrentYear + cQueryDayMonth + "}"
		e.rtc.initial_filter = cShownFilterDayMonth + cCurrentYear
	end if

This code initializes the grid with a specific search filter and then I use this text in the OnSUmmarySEctionRender function to emit the e.rtc.initial_filter to display this filter on the screen so the user knows that the grid has been set to the first of the year. The problem is if I clear the filters it still sets the year in e.rtc.initial_filter = "01/01/2015" in the OnSummarySectionRender event even though I have set it = "" at the end of OnSummarySectionREnder event. I'm not sure if this function keeps resetting it or if it's impossible to change the original instance of e.rtc.initial_filter from OnSummarySectionRender.

Actually I realized while debugging that if i set e.rtc.initial_filter = "test" after the initial grid it changes within the function but it goes back to the initial value "01/01/2015" OnSummarySectionRender. It makes me think the e object rtc properties are static and final or something.

Any ideas? here is the OnSummaryRender Code:

cHighlightedRows = getActiveFilter(session.SelectedFilter)
e.javascript = "$('summary').innerHTML ='" + mySummarySectionHTML +"';"  + cHighlightedRows + \
"$('current-filter').innerHTML = 'Current Filter(s): "+e.rtc.initial_filter +"';" + \
"$('{grid.componentname}.S.STARTDATE').value = '"+e.rtc.initial_filter+"';" + \
	"document.getElementById('StartDate').style.fontWeight = '900'; document.getElementById('StartDate').style.color = 'blue';"
debug(1)
e.javascript = e.javascript + "alert('test');"
end function

[TheSmitchell]

Re: e.ajaxcallback = .f. code running on subsequen ajax callbacks.

http://wiki.alphasoftware.com/~alpha...k+Property+V11

Based on reading the document above I believe I should be able to wrap code in if e.ajaxcallbacks = .f. ... end if to have it only run the first time the grid is initialize yet it keeps running on every subsequent search. Maybe I'm misunderstanding the nature of this function.

I have the following code in the OnGridExecuteEvent:

	if e.ajaxCallback = .f. then
	    dim cCurrentYear as c = CYEAR(DATE())
		dim cQueryDayMonth as c = "-01-01"
		dim cShownFilterDayMonth as c = "01/01/"
		e.tmpl.filter_initial = "p.EstSTADate > {" + cCurrentYear + cQueryDayMonth + "}"
		e.rtc.initial_filter = cShownFilterDayMonth + cCurrentYear
	end if

This code initializes the grid with a specific search filter and then I use this text in the OnSUmmarySEctionRender function to emit the e.rtc.initial_filter to display this filter on the screen so the user knows that the grid has been set to the first of the year. The problem is if I clear the filters it still sets the year in e.rtc.initial_filter = "01/01/2015" in the OnSummarySectionRender event even though I have set it = "" at the end of OnSummarySectionREnder event. I'm not sure if this function keeps resetting it or if it's impossible to change the original instance of e.rtc.initial_filter from OnSummarySectionRender.

Actually I realized while debugging that if i set e.rtc.initial_filter = "test" after the initial grid it changes within the function but it goes back to the initial value "01/01/2015" OnSummarySectionRender. It makes me think the e object rtc properties are static and final or something.

Any ideas? here is the OnSummaryRender Code:

cHighlightedRows = getActiveFilter(session.SelectedFilter)
e.javascript = "$('summary').innerHTML ='" + mySummarySectionHTML +"';"  + cHighlightedRows + \
"$('current-filter').innerHTML = 'Current Filter(s): "+e.rtc.initial_filter +"';" + \
"$('{grid.componentname}.S.STARTDATE').value = '"+e.rtc.initial_filter+"';" + \
	"document.getElementById('StartDate').style.fontWeight = '900'; document.getElementById('StartDate').style.color = 'blue';"
debug(1)
e.javascript = e.javascript + "alert('test');"
end function

I took a look here and did some brief testing after simplifying your second code block. Based on what you've shared here, I don't see where you're updating e.rtc.initial_filter. I am also curious what this "getActiveFilter" function is.

I deliberately added code in OnSummarySectionRender to set e.rtc.inital_filter to nothing and it didn't reset to the original value specified in onGridExecute. Note: I changed this to work with the Northwinds database of customers.

onGridExecute:

if e.ajaxCallback = .f. then
	dim cCurrentYear as c = "1996"
	dim cQueryDayMonth as c = "-01-01"
	dim cShownFilterDayMonth as c = "01/01/"
	e.tmpl.filter_initial = "ShippedDate > {" + cCurrentYear + cQueryDayMonth + "}"
	e.rtc.initial_filter = ">" + cShownFilterDayMonth + cCurrentYear
end if

onSummarySectionRender:

	dim js as c = "{grid.object}.setValue('S','SHIPPEDDATE','"+e.rtc.initial_filter+"',false);"
	e.javascript = js + "alert('"+e.rtc.initial_filter+"');"

	'Deliberately set e.rtc.inital_filter to nothing after first call to onSummarySectionRender
	'If this is being reset by onGridExecute, then the alert should print the original initial filter
	'calculated inside the if e.ajaxCallback = .f. then block
	e.rtc.initial_filter = ""

In my test, e.rtc.initial_filter was never set back to the original value. (And it was cleared after the first navigate to another page in the grid.)

Where are you trying to change the e.rtc.initial_filter variable?

[jwilliamson]

Re: e.ajaxcallback = .f. code running on subsequen ajax callbacks.

Thanks for your reply Sarah!
The issue I'm having is that the code works properly in Working Preview but not when published locally; it's really odd.
I updated the code a little because I want to keep the search form populated with the initial filter value of 01/01/2015 after submitting the form until the user decides to change it or remove it, because clients probably won't want to see projects from last year that often.

When I run the grid in working preview if I don't change the StartDate in the search filter and submit the form it just keeps the value and keeps searching with the initial value like I want it. Then if I change the StartDate to todays date for example, all the records update and the value in the search form is the current date.

When I publish the file locally it populates the search field with 01/01/2015 but if I change the value to 01/01/2014 and submit the form, then when the form is rendered again it goes back to 01/01/2015, but the records update going back to 01/01/2014.

It's weird because if the section of xbasic code in the OnGridExecute that checks if an ajaxcallback had a occurred was executing the second time then the StartDate search filter would have overridden the user input and search would not have worked, but the search DOES work.I think there is an issue with the e.rtc.initial_filter value being final after it is set when published locally but not in working preview. Maybe there is a setting or something I have to change. Idk what is going on .

Edit: So i added the alerts like you suggested and in working preview the first run through it alerts '01/01/2015' and the second time the alert is empty ("") but when published locally it just keeps displaying '01/01/2015'.

dim js as c = ""

cHighlightedRows = getActiveFilter(session.SelectedFilter)
'Check to see if an initial StartDate filter is set and if so insert the value in the search form, display the value
'in the list of current filters, and highlight the filter header
if e.rtc.initial_filter <> "" then
	js = "$('{grid.componentname}.S.STARTDATE').value = '"+e.rtc.initial_filter+"';"
	js = js + "$('current-filter').innerHTML = 'Current Filter(s): "+e.rtc.initial_filter +"';"
	js = js + "document.getElementById('StartDate').style.fontWeight = '900'; document.getElementById('StartDate').style.color = 'blue';"
end if
e.javascript = js + "$('summary').innerHTML ='" + mySummarySectionHTML +"';"  + cHighlightedRows + "alert('"+e.rtc.initial_filter+"');"
'Deliberately set e.rtc.inital_filter to nothing after first call to onSummarySectionRender
'If this is being reset by onGridExecute, then the alert should print the original initial filter
'calculated inside the if e.ajaxCallback = .f. then block
e.rtc.initial_filter = ""

[jwilliamson]

Re: e.ajaxcallback = .f. code running on subsequen ajax callbacks.

So I got a work around from Alpha:

Change the following code in the OnSummarySectionRender event from:

[CODE]if e.rtc.initial_filter <> "" then[CODE]

to

dim isAjax as l = .f.
if variable_exists("request.variables.__Ajax") then
    if request.variables.__Ajax = "true" then
        isAjax = .t.
    end if
end if
if .not. isAjax then

My final Code segment looks like this:

dim isAjax as l = .f.
if variable_exists("request.variables.__Ajax") then
    if request.variables.__Ajax = "true" then
        isAjax = .t.
    end if
end if
if .not. isAjax then
	js = "$('{grid.componentname}.S.STARTDATE').value = '"+e.rtc.initial_filter+"';"
	js = js + "$('current-filter').innerHTML = 'Current Filter(s): "+e.rtc.initial_filter +"';"
	js = js + "document.getElementById('StartDate').style.fontWeight = '900'; document.getElementById('StartDate').style.color = '#ff680a';"
end if
e.javascript = js + "$('summary').innerHTML ='" + mySummarySectionHTML +"';"  + cHighlightedRows
' + "alert('"+e.rtc.initial_filter+"');"
'Deliberately set e.rtc.inital_filter to nothing after first call to onSummarySectionRender
'If this is being reset by onGridExecute, then the alert should print the original initial filter
'calculated inside the if e.ajaxCallback = .f. then block
e.rtc.initial_filter = ""