为 Drill 事件提供数据。
命名空间 CrystalDecisions.Windows.Forms 程序集 CrystalDecisions.Windows.Forms (CrystalDecisions.Windows.Forms.dll)
语法
声明
Public Class DrillEventArgs
Inherits ViewerEventArgs
public class DrillEventArgs : ViewerEventArgs
备注
DrillEventArgs 类包含与 Drill 事件相关的数据。当用户在报表中向下钻取时，CrystalReportViewer 控件引发 Drill 事件。当向下钻取到组或图表中时可能会引发此事件。在组树中选定项目时也会引发此事件。
示例
以下示例获取 Drill 事件的详细信息，并在事件日志中创建一个新条目。
声明
Private Sub LogDrillEvent(ByVal source As Object, _
ByVal e As CrystalDecisions.Windows.Forms.DrillEventArgs) Handles _
CrystalReportViewer.Drill
Dim eventLog As New EventLog("event.log")
Dim eventMsg As String = _
"Drill event:" & vbCrLf & _
"IsDrillDown: " & e.IsDrillDown() & vbCrLf & _
"CurrentGroupLevel: " & e.CurrentGroupLevel & vbCrLf & _
"NewGroupLevel: " & e.NewGroupLevel & vbCrLf & _
"CurrentGroupName: " & e.CurrentGroupName & vbCrLf & _
"NewGroupName: " & e.NewGroupName & vbCrLf & _
"CurrentGroupPath: " & e.CurrentGroupPath & vbCrLf & _
"NewGroupPath: " & e.NewGroupPath
eventLog.WriteEntry(eventMsg)
e.Handled = False
End Sub
private void LogDrillEvent(Object source,
CrystalDecisions.Windows.Forms.DrillEventArgs e)
{
System.Diagnostics.EventLog eventLog =
new System.Diagnostics.EventLog("event.log");
string eventMsg =
"Drill event:" + "\n" +
"IsDrillDown: " + e.IsDrillDown() + "\n" +
"CurrentGroupLevel: " + e.CurrentGroupLevel + "\n" +
"NewGroupLevel: " + e.NewGroupLevel + "\n" +
"CurrentGroupName: " + e.CurrentGroupName + "\n" +
"NewGroupName: " + e.NewGroupName + "\n" +
"CurrentGroupPath: " + e.CurrentGroupPath + "\n" +
"NewGroupPath: " + e.NewGroupPath;
eventLog.WriteEntry(eventMsg);
e.Handled = false;
}
继承层次结构
Object
EventArgs
ViewerEventArgs
DrillEventArgs
版本信息
Crystal Reports Basic for Visual Studio 2008
从此版本开始支持： Crystal Reports for Visual Studio .NET 2002