DxReportDesignerCallbacks.OnInitializing Property

“Specifies the JavaScript function that handles the OnInitializing client-side event and runs before the BeforeRender callback.

Namespace: DevExpress.Blazor.Reporting

Assembly: DevExpress.Blazor.Reporting.v25.1.JSBasedControls.Common.dll

NuGet Package: DevExpress.Blazor.Reporting.JSBasedControls.Common

Declaration

C#

[Parameter]
public string OnInitializing { get; set; }

VB.NET

<Parameter>
Public Property OnInitializing As String

Property Value

Type	Description
String	The name of a JavaScript function used to handle the OnInitializing event.

Remarks

Use the OnInitializing callback to patch the initial “get designer model” HTTP request:

window.ReportingCustomization = {
    //passing headers with Fetch API or jQuery AJAX
    onReportDesignerInitializing: function (s) {
        DevExpress.Analytics.Utils.fetchSetup.fetchSettings = { headers: { HEADER1: 'VALUE1' } };
        //DevExpress.Analytics.Utils.ajaxSetup.ajaxSettings = { headers: { HEADER1: 'VALUE1' } };
    }
}

<DxReportDesigner ReportName="TestReport" Height="calc(100vh - 130px)" Width="100%">
    <DxReportDesignerCallbacks OnInitializing="ReportingCustomization.onReportDesignerInitializing" />
</DxReportDesigner>