usage of range header in jsonrest for paging - json

Question

new to DOJO..using JsonRest to get data from database...i have given range to display 0-1000 out of 50000 ...but it is displaying full data......requirement is that when that 1000 loaded while scrolling the next request goes to server and rest of the data will display....
please help i tried a lot ......
my code
myStore = dojo.store.Cache(dojo.store.JsonRest({
target : "myip7080/GridExample/string"
}), dojo.store.Memory());
myStore.query({
start: 0,
count: 1000
}).then(function(results){
alert(results);
});
grid = new dojox.grid.DataGrid({
store : dataStore = dojo.data.ObjectStore({
objectStore : myStore
}),
structure : [ {
name : "SNO",
field : "sno",
width : "100px",
editable : true
}, {
name : "SNAME",
field : "sname",
width : "100px",
editable : true
}, {
name : "SALARY",
field : "salary",
width : "200px",
editable : true
} ]
}, "target-node-id"); // make sure you have a target HTML element with this id
grid.startup();
dojo.query("#save").onclick(function() {
dataStore.save();
});
});

Answer 1

dojo/store/Memory::query() takes two parameters:
An object that queries the data
An QueryOptions object containing the options for this query (optional)
You can query specific entries from your data like this:
myStore.query(
{ name: "John Doe" }
);
//returns all rows with name="John Doe"
You don't have to make a specific query. If you want all your data, just do myStore.query("");
If you want to limit the number of rows shown, you need to add a second parameter to represent your query options:
myStore.query(
{ name: "John Doe" },
{ start: 0, count: 1000 } //return 1000 results, starting at the beginning
);
See the documentation for dojo/store/memory::query().