ZoomEventArgs 类

  • 项目

为 ViewZoom 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 ZoomEventArgs
    Inherits ViewerEventArgs

public class ZoomEventArgs : ViewerEventArgs

备注

ZoomEventArgs 类包含与 ViewZoom 事件相关的数据。当更改 CrystalReportViewer 控件中的缩放比例时，CrystalReportViewer 控件引发 ViewZoom 事件。

示例

以下示例获取 Zoom 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 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;
      }

继承层次结构

Object
   EventArgs
      ViewerEventArgs
         ZoomEventArgs

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

另请参见

引用

ZoomEventArgs 成员
CrystalDecisions.Windows.Forms 命名空间