如何：在打印控件时获取当前页码

这个示例展示了如何在打印控件时获取当前页码。

在 XRControl.PrintOnPage 事件中，PrintOnPageEventArgs.PageCount 和 PrintOnPageEventArgs.PageIndex 属性允许获取页面的 当前页码 和 总页数 (PrintOnPageEventArgs.PageIndex 属性返回从零开始的索引)。

注意，XRControl.PrintOnPage 事件的触发顺序在 XRControl.BeforePrint 和 XRControl.AfterPrint 事件的后面。

C#	复制代码
using System; using System.Windows.Forms; using DevExpress.XtraReports.UI; // ... private void xrLabel1_PrintOnPage(object sender, PrintOnPageEventArgs e) { if (e.PageCount > 0) { // Check if the control is printed on the first page. if (e.PageIndex == 0) { // Cancels the control's printing. e.Cancel = true; } } }

复制代码

using System;
using System.Windows.Forms;
using DevExpress.XtraReports.UI;
// ...

private void xrLabel1_PrintOnPage(object sender, PrintOnPageEventArgs e) {
    if (e.PageCount > 0) {
        // Check if the control is printed on the first page.
        if (e.PageIndex == 0) {
            // Cancels the control's printing.
            e.Cancel = true;
        }
    }
}

Visual Basic	复制代码
Imports System Imports System.Windows.Forms Imports DevExpress.XtraReports.UI ' ... Private Sub xrLabel1_PrintOnPage(ByVal sender As Object, _ ByVal e As PrintOnPageEventArgs) Handles xrLabel1.PrintOnPage If e.PageCount > 0 Then ' Check if the control is printed on the first page. If e.PageIndex = 0 Then ' Cancels the control's printing. e.Cancel = True End If End If End Sub

Visual Basic

复制代码

Imports System
Imports System.Windows.Forms
Imports DevExpress.XtraReports.UI
' ...

Private Sub xrLabel1_PrintOnPage(ByVal sender As Object, _ 
ByVal e As PrintOnPageEventArgs) Handles xrLabel1.PrintOnPage
    If e.PageCount > 0 Then
        ' Check if the control is printed on the first page.
        If e.PageIndex = 0 Then
            ' Cancels the control's printing.
            e.Cancel = True
        End If
    End If
End Sub

Show Me
在 DevExpress Code Central 数据库中可以找到完整的示例项目，网址是 http://www.devexpress.com/example=E1952。取决于目标平台类型 (ASP.NET、WinForms 等)，可以在线运行本示例，或者下载自动可执行的示例。