dataview loadNext

Discontinued products DHTMLX Touch
#1

I am using loadNext when the ‘onAfterScroll’ event fired. If the no. of items in db is 400 and I have already reached at the end of the items loaded already in dataview, how to stop further?.

I wrote a logic if the start count of the required data reached total count, it will return a empty json. But I am getting error. How to do the above task?.

#2

Hello,

You can add the check for total number in the onAfterScroll handler. The number of records in db can be passed with the response:

dhx.ajax(“info.php”, function(text){
var info = dhx.DataDriver.json.toObject(text);
total = info.total_count;
});

where info.php return the object with total_count property

#3

Using total_count is giving the error when I bind the datastore to the dataview.

                                $$("MovieWallView").sync(datastore, this);
                                $$("MovieWallView").bind(datastore, function(data, obj){
                                        return data.TITLE_TYPE;
                                });
                                });

I got an error which says TITLE_TYPE of undefined. But without total_count in the json, it works fine.

#4

try to load total_count with separate request:

dhx.ajax("info.php", function(text){ var info = dhx.DataDriver.json.toObject(text); total = info.total_count; $$("mylist").load("data.php"); .... });

#5

I am using the following syntax for total_count.

{
pos: 0,
total_count: 400,
data: [{
}]
}

is it correct?.

You want to call the total_count in a separate php call by getting only the no. of rows?.

#6

Here is what I meant:

info.php:

{ total_count : 100 }

data.php:

{ pos : 0, data : [ ... ] }

#7

Thanks. That worked perfectly.

#8

One more bug I found. I am initializing the datastore like below.

                                var datastore =  new dhx.DataCollection({
                                    datatype:"json"
                                });

I am loading the datastore via php call.

                                dhx.delay(function(){
                                        datastore.load("getXML.php?xml=getList&source="+sourcePath);
                                });

When I am using loadNext, nothing happened. I found the datastore.url is empty. How to set the url?. I want to load the data only required and not while initializing the datastore.