While using Extjs store you will come across some common questions like how to reload a store or change its url etc.
Below is the listing of some of the extjs store FAQs and their answers.
Change store url dynamically :
store.proxy.url = newUrl;
Update or add store baseparams :
store.baseParams = {
sort : "name",
selectedUser : store.getById(userId).data.userName
}
or
store.baseParams.selectedUser : store.getById("10").data.userName;
Load store from another store :
store2.loadData(store1.reader.xmlData);
//to load store with json data use store1.reader.jsonData
Reload the store :
store.reload(store.lastOptions);
Load store with the value stored in local (javascript) variable :
store.loadData(localVariable);
// localVariable contains the data to be loaded into the store.
Append data to existing store :
store.loadData(newData, true) //newData contains the data to be appended
Iterate over store records :
store.each(function(currentRecord) {
alert(currentRecord.id);
// alerts record id for each store record
});
Remove a record from the store :
store.remove(recordToRemove);
//recordToRemove is the record object to be removed from store.
//This can also be an array if you want to remove multiple records.
//Use store.removeAll() to remove all the records
//If you know index of the record then use store.removeAt(recordIndex)
