Listgrid - load on demand

[fernandomm]

Hello,

I have a grid that shows around 20k-25k records. I want to do something like it is done on Live Grid example, but it doesn't seem to be working. When i get to the end of the grid, it doesn't load the other records ( i have limited to 75 ).

Is there any additional parameter that i should set?


Grid code:

isc.ListGrid.create(
{  
   "ID":"subscribersGrid",
   "width":750,"height":300,
   "fields":null,
   "dataSource":subscribersDS,
   "canEdit":false,
   "showFilterEditor":true,
   "autoFetchData":true}
);

Datasource code:

isc.RestDataSource.create(
{
        "ID":"subscribersDS",
        "dataFormat":"json",
        "fields":[{"name":"id","title":"ID","primaryKey":true,"foreignKey":null,"rootValue":null,"canEdit":false},
   {"name":"email","title":"Email","primaryKey":false,"foreignKey":"","rootValue":0,"canEdit":true},
         "operationBindings": [{"dataURL":"index.php?page_name=subscribers&act=sc_list&type=activated","operationType":"fetch"}],
         "dataProtocol":"postParams"
});

Example of response:

{"response": 
   {
          "startRow":0,
          "endRow":75,
          "totalRows":20000,
          "status":0,
          "data": [{
                 // 75 records...
          }]
}}

[gravityshock]

Hi,

just try to add

dataPageSize:75,
drawAheadRatio:4

to your listgrid definition.

[Isomorphic]

That part of your code is fine. Something else is wrong, in code you aren't showing. Try isolating the issue to a minimal test case.