JavaScript/jQuery LoadIndicator Methods
beginUpdate()
Prevents the UI component from refreshing until the endUpdate() method is called.
The beginUpdate() and endUpdate() methods prevent the UI component from excessive updates when you are changing multiple UI component settings at once. After the beginUpdate() method is called, the UI component does not update its UI until the endUpdate() method is called.
See Also
defaultOptions(rule)
defaultOptions is a static method that the UI component class supports. The following code demonstrates how to specify default properties for all instances of the LoadIndicator UI component in an application executed on the desktop.
jQuery
DevExpress.ui.dxLoadIndicator.defaultOptions({
device: { deviceType: "desktop" },
options: {
// Here go the LoadIndicator properties
}
});Angular
import LoadIndicator from "devextreme/ui/load_indicator";
// ...
export class AppComponent {
constructor () {
LoadIndicator.defaultOptions({
device: { deviceType: "desktop" },
options: {
// Here go the LoadIndicator properties
}
});
}
}Vue
<template>
<div>
<DxLoadIndicator id="loadIndicator1" />
<DxLoadIndicator id="loadIndicator2" />
</div>
</template>
<script>
import DxLoadIndicator from "devextreme-vue/load-indicator";
import LoadIndicator from "devextreme/ui/load_indicator";
LoadIndicator.defaultOptions({
device: { deviceType: "desktop" },
options: {
// Here go the LoadIndicator properties
}
});
export default {
components: {
DxLoadIndicator
}
}
</script>React
import React, {useEffect} from "react";
import dxLoadIndicator from "devextreme/ui/load_indicator";
import LoadIndicator from "devextreme-react/load-indicator";
export default function App() {
useEffect(() => {
dxLoadIndicator.defaultOptions({
device: { deviceType: "desktop" },
options: {
// Here go the LoadIndicator properties
}
})
});
return (
<div>
<LoadIndicator id="loadIndicator1" />
<LoadIndicator id="loadIndicator2" />
</div>
)
}dispose()
After calling this method, remove the DOM element associated with the UI component:
$("#myLoadIndicator").dxLoadIndicator("dispose");
$("#myLoadIndicator").remove();Use this method only if the UI component was created with jQuery or pure JavaScript. In Angular, Vue, and React, use conditional rendering:
Angular
<dx-load-indicator ...
*ngIf="condition">
</dx-load-indicator>Vue
<template>
<DxLoadIndicator ...
v-if="condition">
</DxLoadIndicator>
</template>
<script>
import DxLoadIndicator from 'devextreme-vue/load-indicator';
export default {
components: {
DxLoadIndicator
}
}
</script>React
import React from 'react';
import LoadIndicator from 'devextreme-react/load-indicator';
function DxLoadIndicator(props) {
if (!props.shouldRender) {
return null;
}
return (
<LoadIndicator ... >
</LoadIndicator>
);
}
class App extends React.Component {
render() {
return (
<DxLoadIndicator shouldRender="condition" />
);
}
}
export default App;See Also
getInstance(element)
getInstance is a static method that the UI component class supports. The following code demonstrates how to get the LoadIndicator instance found in an element with the myLoadIndicator ID:
// Modular approach
import LoadIndicator from "devextreme/ui/load_indicator";
...
let element = document.getElementById("myLoadIndicator");
let instance = LoadIndicator.getInstance(element) as LoadIndicator;
// Non-modular approach
let element = document.getElementById("myLoadIndicator");
let instance = DevExpress.ui.dxLoadIndicator.getInstance(element);