ReportViewer.Drillthrough-Ereignis

Tritt auf, wenn ein Drillthroughelement ausgewählt wird.

Namespace: Microsoft.Reporting.WebForms
Assembly: Microsoft.ReportViewer.WebForms (in microsoft.reportviewer.webforms.dll)

Syntax

'Declaration
Public Event Drillthrough As DrillthroughEventHandler
'Usage
Dim instance As ReportViewer
Dim handler As DrillthroughEventHandler

AddHandler instance.Drillthrough, handler

public event DrillthroughEventHandler Drillthrough

public:
event DrillthroughEventHandler^ Drillthrough {
    void add (DrillthroughEventHandler^ value);
    void remove (DrillthroughEventHandler^ value);
}

/** @event */
public void add_Drillthrough (DrillthroughEventHandler value)

/** @event */
public void remove_Drillthrough (DrillthroughEventHandler value)

JScript supports the use of events, but not the declaration of new ones.

Hinweise

Dieses Ereignis tritt auf, wenn ein Drillthroughelement ausgewählt wird. Informationen zu diesem Ereignis werden in einem DrillThroughEventArgs-Objekt an den DrillThroughEventHandler-Delegaten übergeben, der das Ereignis behandelt.

Weitere Informationen zur Behandlung von Ereignissen finden Sie unter Consuming Events.

Beispiel

Im folgenden Beispielcode wird ein Beispielbericht mit einer Reihe von Drillthroughelementen geladen und ein Ereignishandler zur Behandlung der Drillthroughereignisse eingerichtet. Zu den an den Drillthrough-Ereignishandler übergebenen Argumenten gehört auch ein Drillthrough-Berichtsobjekt. Der Ereignishandler fügt diesem Bericht eine Datenquelle hinzu, bevor der Drillthroughbericht im ReportViewer-Steuerelement gerendert wird.

Imports System.Data
Imports Microsoft.Reporting.WebForms

Partial Class _Default
    Inherits System.Web.UI.Page


    Private Function LoadEmployeesData() As DataTable
        Dim dataSet As New DataSet()
        dataSet.ReadXml("c:\My Reports\employees.xml")
        LoadEmployeesData = dataSet.Tables(0)
    End Function

    Private Function LoadDepartmentsData()
        Dim dataSet As New DataSet()
        dataSet.ReadXml("c:\My Reports\departments.xml")
        LoadDepartmentsData = dataSet.Tables(0)
    End Function

    Public Sub DemoDrillthroughEventHandler(ByVal sender As Object, ByVal e As DrillthroughEventArgs)
        Dim localReport = e.Report
        localReport.DataSources.Add(New ReportDataSource("Employees", LoadEmployeesData()))
    End Sub


    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        If (Not IsPostBack) Then

            ' Set RDL file.
            ReportViewer1.LocalReport.ReportPath = "c:\My Reports\Departments.rdlc"

            ' Supply a DataTable corresponding to each report data source.
            Dim myReportDataSource = New ReportDataSource("Departments", LoadDepartmentsData())
            ReportViewer1.LocalReport.DataSources.Add(myReportDataSource)
        End If

        'Add a handler for drillthrough.
        AddHandler ReportViewer1.Drillthrough, AddressOf DemoDrillthroughEventHandler

    End Sub
End Class

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Microsoft.Reporting.WebForms;

public partial class _Default : System.Web.UI.Page 
{
        private DataTable LoadEmployeesData()
        {
            DataSet dataSet = new DataSet();
            dataSet.ReadXml(@"c:\My Reports\employees.xml");
            return dataSet.Tables[0];
        }

        private DataTable LoadDepartmentsData()
        {
            DataSet dataSet = new DataSet();
            dataSet.ReadXml(@"c:\My Reports\departments.xml");
            return dataSet.Tables[0];
        }

        void DemoDrillthroughEventHandler(object sender, DrillthroughEventArgs e)
        {
            LocalReport localReport = (LocalReport)e.Report;
            localReport.DataSources.Add(new ReportDataSource("Employees",
                LoadEmployeesData()));
        }

    protected void Page_Load(object sender, EventArgs e)
    {

        if (!IsPostBack)
            {
            // On initial page load
            ReportViewer1.LocalReport.ReportPath = @"c:\My Reports\Departments.rdlc";

            // Supply a DataTable corresponding to each report data source.
            ReportViewer1.LocalReport.DataSources.Add(
                new ReportDataSource("Departments", LoadDepartmentsData()));
            }

        // Add the handler for drillthrough.
        ReportViewer1.Drillthrough += new DrillthroughEventHandler(DemoDrillthroughEventHandler);

    }
}

Siehe auch

Referenz

ReportViewer-Klasse
ReportViewer-Member
Microsoft.Reporting.WebForms-Namespace