ZoomEventArgs 類別

為 ViewZoom 事件提供資料。

命名空間 CrystalDecisions.Windows.Forms 組件 CrystalDecisions.Windows.Forms (CrystalDecisions.Windows.Forms.dll)

語法

Public Class ZoomEventArgs
    Inherits ViewerEventArgs

public class ZoomEventArgs : ViewerEventArgs

註解

ZoomEventArgs 類別包含與 ViewZoom 事件相關的資料。當 CrystalReportViewer 控制項中的縮放等級發生變更時，CrystalReportViewer 控制項便會引發 ViewZoom 事件。

範例

下列範例會取得 Zoom 事件的詳細資料，並於事件記錄檔中建立新項目。

      Private Sub LogZoomEvent(ByVal source As Object, _
         ByVal e As CrystalDecisions.Windows.Forms.ZoomEventArgs) Handles _
           CrystalReportViewer.ViewZoom
         Dim eventLog As New EventLog("event.log")
         Dim eventMsg As String = _
         "Zoom event:" & vbCrLf & _
         "CurrentZoomFactor: " & e.CurrentZoomFactor() & vbCrLf & _
         "NewZoomFactor: " & e.NewZoomFactor()
         eventLog.WriteEntry(eventMsg)
         e.Handled = False
      End Sub
      

      private void LogZoomEvent(Object source, 
      CrystalDecisions.Windows.Forms.ZoomEventArgs e)
      {
         System.Diagnostics.EventLog eventLog = 
           new System.Diagnostics.EventLog("event.log");
         string eventMsg = 
           "Zoom event:" + "\n" +
           "CurrentZoomFactor: " + e.CurrentZoomFactor + "\n" +
           "NewZoomFactor: " + e.NewZoomFactor;
         eventLog.WriteEntry(eventMsg);
         e.Handled = false;
      }
      

繼承階層

Object
   EventArgs
      ViewerEventArgs
         ZoomEventArgs

版本資訊

Crystal Reports Basic for Visual Studio 2008

自從 Crystal Reports for Visual Studio .NET 2002 開始支援

請參閱

參考

ZoomEventArgs 成員
CrystalDecisions.Windows.Forms 命名空間