ReportWizardCustomizationService.TryCreateCustomReportAsync(XtraReportModel, Object, String, CustomWizardData, XtraReport) Method

Allows you to create any type of report and apply all settings specified in the wizard steps, asynchronously.

Namespace: DevExpress.XtraReports.Web.ReportDesigner.Services

Assembly: DevExpress.XtraReports.v25.1.Web.dll

NuGet Package: DevExpress.Web.Reporting.Common

Declaration

C#

public virtual Task<XtraReport> TryCreateCustomReportAsync(
    XtraReportModel model,
    object dataSource,
    string dataMember,
    CustomWizardData customWizardData,
    XtraReport report
)

VB.NET

Public Overridable Function TryCreateCustomReportAsync(
    model As XtraReportModel,
    dataSource As Object,
    dataMember As String,
    customWizardData As CustomWizardData,
    report As XtraReport
) As Task(Of XtraReport)

Parameters

Name	Type	Description
model	XtraReportModel	An object that stores settings specified using the wizard.
dataSource	Object	A data source specified with the wizard.
dataMember	String	The data member value specified using the wizard.
customWizardData	CustomWizardData	Additional data specified using the wizard.
report	XtraReport	A report instance with which the Wizard starts.

Returns

Type	Description
Task<XtraReport>	A Task that completes when the method is finished.

Remarks

The TryCreateCustomReportAsync method is called in asynchronous mode, after a user has completed the Wizard. Within the method, you can create any type of report and apply all settings specified using the wizard steps. Report settings are included in the wizard report model (passed to the method with the model parameter).

The TryCreateCustomReportAsync method is also called when the user runs the New command in the Report Designer or invokes the Report Wizard.

Note that you can either change the initial report from which the Wizard starts, or create a new report from scratch.

The following code snippet removes the Cross-Tab report from the wizard and adds three ReportWizardTemplate items to the collection. After the Wizard is finished, it adds a simple report header to the created report.

Note that you should handle the ID of the custom report template item in the TryCreateCustomReport method, so that the user can create custom reports from that template.

C#

using DevExpress.XtraReports.UI;
using DevExpress.XtraReports.Web.ReportDesigner.DataContracts;
using DevExpress.XtraReports.Web.ReportDesigner.Services;
using DevExpress.XtraReports.Wizards;
using ReportWizardCustomizationServiceMvcExample.PredefinedReports;
using System;
using System.Linq;
using System.Threading.Tasks;

public class InstantReportWizardCustomizationService : ReportWizardCustomizationService {
    public enum CustomReportType {
        CustomLabelReport,
        InstantReport
    }

    public override XtraReport TryCreateCustomReport(XtraReportModel model, object dataSource, string dataMember, CustomWizardData customWizardData, XtraReport report) {
        if (Enum.TryParse(customWizardData.ReportTemplateID, out CustomReportType customReportType)) {
            if (customReportType == CustomReportType.InstantReport) {
                return new InstantReport() {
                    Name = customWizardData.ReportTemplateID,
                    DisplayName = customWizardData.ReportTemplateID
                };
            }
            else if (customReportType == CustomReportType.CustomLabelReport) {
                var labelReport = new LabelReport();
                labelReport.ApplyCustomData(customWizardData.Data);
                return labelReport;
            }
        }
        return base.TryCreateCustomReport(model, dataSource, dataMember, customWizardData, report);
    }
    public override Task<XtraReport> TryCreateCustomReportAsync(XtraReportModel model, object dataSource, string dataMember, CustomWizardData customWizardData, XtraReport report) {
        return Task.FromResult(TryCreateCustomReport(model, dataSource, dataMember, customWizardData, report));
    }
    public override void CustomizeReportTypeList(ReportWizardTemplateCollection predefinedTypes) {
        predefinedTypes.Remove(predefinedTypes.Where(x => x.ID == nameof(ReportType.CrossTab)).First());
        predefinedTypes.Add(new DevExpress.XtraReports.Web.ReportDesigner.DataContracts.ReportWizardTemplate() {
            CanInstantlyFinish = true,
            ID = nameof(CustomReportType.InstantReport),
            Text = "Instant Report",
            ImageTemplateName = "instant-report"
        });
        predefinedTypes.Add(new DevExpress.XtraReports.Web.ReportDesigner.DataContracts.ReportWizardTemplate() {
            CanInstantlyFinish = true,
            ID = nameof(CustomReportType.InstantReport),
            Text = "Instant Report",
            ImageClassName = "instant-report-image"
        });
        predefinedTypes.Add(new DevExpress.XtraReports.Web.ReportDesigner.DataContracts.ReportWizardTemplate() {
            ID = nameof(CustomReportType.CustomLabelReport),
            Text = "Custom Label Report",
            ImageTemplateName = "dxrd-svg-wizard-LabelReport"
        });
    }

    public override Task CustomizeReportTypeListAsync(ReportWizardTemplateCollection predefinedTypes) {
        CustomizeReportTypeList(predefinedTypes);
        return Task.CompletedTask;
    }

    public override void CustomizeReportOnFinish(XtraReport report) {
        if (report.Bands.GetBandByType(typeof(ReportHeaderBand)) == null)
            report.Bands.Add(new ReportHeaderBand() {
                Controls = {
                    new XRLabel() {
                        Text = string.Format("Instant Report {0:MMM dd}", System.DateTime.Today),
                        SizeF= new System.Drawing.SizeF(650F, 100F),
                        Font = new DevExpress.Drawing.DXFont("Arial", 24)

    } }
            }); ; ;
    }

    public override Task CustomizeReportOnFinishAsync(XtraReport report) {
        CustomizeReportOnFinish(report);
        return Task.CompletedTask;
    }
}

For more information on asynchronous mode, review the following help topics:

ASP.NET Core	ASP.NET MVC
ReportingConfigurationBuilder.UseAsyncEngine	DefaultReportDesignerContainer.UseAsyncEngine