How to call refresh() on a kendo-grid from an Angular controller? - angularjs

Question

I'm attempting to follow several suggestions on refreshing a kendo-grid such as this.
The essential is that in the html I have:
<div kendo-grid="vm.webapiGrid" options="vm.mainGridOptions">
Then in the controller I have:
vm.webapiGrid.refresh();
Note: I'm using the ControllerAs syntax so I am using "vm" rather than $scope.
My problem is that "vm.webapiGrid" is undefined. This seems so straightforward, but I'm not sure why it is undefined.

Answer 1

Found the answer. One other method of refreshing the datasource I read about was to do something like:
vm.mainGridOptions.datasource.transport.read();
This wasn't working for me as "read" was undefined. Looking at my datasource definition, I saw the reason, read needs a parameter (in this case "e"):
vm.mainGridOptions = {
dataSource: {
transport: {
read: function (e) {
task.getAllTasks(vm.appContext.current.contextSetting).
then(function (data) {
e.success(data);
});
},
}
},
To solve, I saved "e" in my scope and then reused it when I wanted to refresh:
vm.mainGridOptions = {
dataSource: {
transport: {
read: function (e) {
task.getAllTasks(vm.appContext.current.contextSetting).
then(function (data) {
e.success(data);
vm.optionCallback = e;
});
},
}
},
and then:
if (vm.optionCallback !== undefined) {
vm.mainGridOptions.dataSource.transport.read(vm.optionCallback);
}
Problem solved (I hope).

Answer 2

it's because you are using the options object to trigger the read, you should use the grid reference instead:
<div kendo-grid="vm.webapiGrid" options="vm.mainGridOptions">
as in:
$scope.vm.webapiGrid.dataSource.transport.read();
hope that helps.

Answer 3

Add id to the grid and trying refreshing using it.
<div kendo-grid="vm.webapiGrid" options="vm.mainGridOptions" id="grid1">
In controller use this:
$("#grid1").data('kendoGrid').refresh();