DevExtreme jQuery/JS - Indicate the Loading State
While the content of the DeferRendering widget is getting ready, the widget can display a loading indicator. It is disabled by default, so assign true to the showLoadIndicator if you need to enable it.
<div data-options="dxView: { name: 'Products', title: 'Products' }">
    <div data-options="dxContent: { targetPlaceholder: 'content' }" data-bind="dxDeferRendering: {
        showLoadIndicator: true,
        renderWhen: isReady
    }">
        <!-- Widget content -->
    </div>
</div>If you want to display custom content instead of the loading indicator, use the following CSS classes.
- dx-visible-while-pending-rendering
 All elements with this class will be displayed while the main content is getting ready.
- dx-invisible-while-pending-rendering
 All elements with this class are the main content.
<div data-options="dxView: { name: 'Products', title: 'Products' }">
    <div data-options="dxContent: { targetPlaceholder: 'content' }" data-bind="dxDeferRendering: {
        showLoadIndicator: true,
        renderWhen: isReady
    }">
        <div class="dx-visible-while-pending-rendering">
            <!-- Displayed while the main content is getting ready -->
        </div>
        <div class="dx-invisible-while-pending-rendering">
            <!-- The main content -->
        </div>
    </div>
</div>See Also
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