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