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Customization - Document Viewer for Blazor Server

Use the DxDocumentViewerCallbacks object properties to customize the Document Viewer.

You must add the JavaScript functions that use the client-side API to customize components, and specify the function names as handlers of the appropriate events.

#Remove the Time Part in the DateTime Editor

The following code removes the time part in the DateTime editor and specifies the page zoom factor:

@page "/viewercustomization"

<h1>Document Viewer - Customization</h1>

<ul>
    <li>Time part is removed for date parameter</li>
    <li>Set default Zoom level to "Page Width"</li>
</ul>

<DxDocumentViewer ReportName="SampleReport" Height="1000px" Width="100%">
    <DxDocumentViewerCallbacks BeforeRender="ReportingViewerCustomization.onBeforeRender"
                               CustomizeParameterEditors="ReportingViewerCustomization.onCustomizeParameterEditors" 
                               />
</DxDocumentViewer>

The following code snippet contains JavasScript functions whose names are specified as event handlers on the Razor pages above.

window.ReportingViewerCustomization = {
    onCustomizeParameterEditors: function(s, e) {
        //Remove time part from the DateTime parameter editor
        if(e.parameter.type === "System.DateTime") {
            e.info.editor = $.extend({}, e.info.editor);
            e.info.editor.extendedOptions = $.extend(e.info.editor.extendedOptions || {}, { type: 'date' });
        }
    },

    //Change default Zoom level
    onBeforeRender: function(s, e) {
        //-1: Page Width
        //0: Whole Page
        //1: 100%
        e.reportPreview.zoom = -1;
    }
}