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V25.1
  • WebDocumentViewerClientSideEventsBuilderBase<TBuilder, TEvents>.OnInitializing(String) Method

    Allows you to specify a JavaScript function that runs before Document Viewer fetches the View model from the server and before the BeforeRender event.

    Namespace: DevExpress.AspNetCore.Reporting.WebDocumentViewer

    Assembly: DevExpress.AspNetCore.Reporting.v25.1.dll

    NuGet Package: DevExpress.AspNetCore.Reporting

    Declaration

    public TBuilder OnInitializing(
        string callback
    )

    Parameters

    Name Type Description
    callback String

    The name of a JavaScript function or entire JavaScript function code that runs when the OnInitializing event occurs.

    Returns

    Type Description
    TBuilder

    The WebDocumentViewerClientSideEventsBuilderBase<TBuilder, TEvents> object that can be used for method chaining.

    Remarks

    The OnInitializing event occurs when the client component is created, before the view model is fetched from the server, and before the BeforeRender event occurs.

    You can handle the OnInitializng event` to patch the initial “get designer model” HTTP request:

    onInitializing: function (s) {
        DevExpress.Analytics.Utils.fetchSetup.fetchSettings = { headers: { HEADER1: 'VALUE1' } };
        //DevExpress.Analytics.Utils.ajaxSetup.ajaxSettings = { headers: { HEADER1: 'VALUE1' } };
    }
    
    See Also