WebDocumentViewerBuilder.AutoStartBuild(Boolean) Method

Specifies whether to start building a document automatically before the Document Viewer’s UI is rendered.

Namespace : DevExpress.AspNetCore.Reporting.WebDocumentViewer

Assembly : DevExpress.AspNetCore.Reporting.v25.2.dll

NuGet Package : DevExpress.AspNetCore.Reporting

csharp

public WebDocumentViewerBuilder AutoStartBuild(
    bool autoStartBuild
)

Public Function AutoStartBuild(
    autoStartBuild As Boolean
) As WebDocumentViewerBuilder

Parameters

Name	Type	Description
autoStartBuild	Boolean

true to start building a document automatically; otherwise, false.

Returns

Type	Description
WebDocumentViewerBuilder

A WebDocumentViewerBuilder that can be used to further configure the Document Viewer.

Remarks

In ASP.NET Core MVC applications, the Web Document Viewer sends the startBuild request automatically before the Document Viewer’s UI is rendered (if there is no need to wait for parameter values in the UI). If the report has no visible parameters and you set parameter values in the ParametersInitialized event handler and call the Submit() method, the report is generated twice.

Pass false to the AutoStartBuild method to disable automatic document generation:

cshtml

@model DevExpress.XtraReports.Web.WebDocumentViewer.WebDocumentViewerModel
@{
    var viewerRender = Html.DevExpress().WebDocumentViewer("DocumentViewer")
        .Height("100%")
        .AutoStartBuild(false)
        .ClientSideEvents(configure => { 
            configure.ParametersInitialized("onParametersInitialized");
        })
        .Bind(Model);
    @viewerRender.RenderHtml()
}
@* ... *@