.Net中浏览Crystal Report

大名鼎鼎的 Crystal Reports（水晶报表）已内嵌为微软 Visual Studio .NET的标准报表工具，同时升级到 Crystal Reports for Visual Studio .NET。它的优点是：1、在 .NET 平台能够轻松创建交互式的、高质量显现的报表内容，这也是 Crystal Reports 长期以来所具有的主要优势；2、使用 Crystal Reports for Visual Studio .NET，可以在 Web 平台和 Windows 平台上承载报表，并将 Crystal 报表作为报表 Web 服务在 Web 服务器上发布；3、利用Crystal Report 创建的Web应用程序，使用户可以深化图表并根据需要筛选信息。在 .NET 中，图表实际上就是一个与应用程序中其他控件进行交互的 Crystal 报表。在这里我向大家介绍如何在 Windows 窗体应用程序中浏览水晶报表。

设计步骤：

1、软件环境：要求系统已安装Visual Studio .Net 集成开发系统，仅装有 .Net Framework SDk 不能实现本例效果，成为 .Net Framework SDK 没有水晶报表控件。

2、新建一个 Visual C# 项目 Windows 应用程序，设置Form1的Text="水晶报表浏览器"，StartPosition=CenterScreen //程序开始出现在屏幕中央，其它属性均保持默认；

3、从工具箱拖入一个CrystalReportViewer，一个Button，一个openFileDialog，到窗体。

整个设计器的窗体布局只需将button1置于窗体底边中部，不再需要其它多余布局。

设置crystalReportViewer1的属性如下：

this.crystalReportViewer1.Dock = System.Windows.Forms.DockStyle.Fill;

//停靠方式为充满整个窗体

//展开+DockPadding

this.crystalReportViewer1.DockPadding.Bottom = 50;

 //底部空出放置Button的区域

this.crystalReportViewer1.DockPadding.Left = 5;

this.crystalReportViewer1.DockPadding.Right = 5;

this.crystalReportViewer1.DockPadding.Top = 5;

this.crystalReportViewer1.ReportSource = null;

//先不载入报表资源

设置button1的属性如下：

this.button1.Anchor = System.Windows.Forms.AnchorStyles.Bottom;

 //与窗体的下边保持固定

this.button1.Text = "打开报表";

openFileDialog1是打开文件的控件，设置其属性如下：

this.openFileDialog1.Filter

= "Crystal Report (*.rpt)|*.rpt|所有文件(*.*)|*.*";

//提供打开文件对话框的文件类型，

默认类型就是此字符串的最前一种定义的类型

this.openFileDialog1.Title = "打开水晶报表";

 //打开文件对话框的标题

布局效果图如下：

4、双击button1，添加button1_Click点击事件：

private void button1_Click(object sender, System.EventArgs e)

try

if(openFileDialog1.ShowDialog()==DialogResult.OK)

this.crystalReportViewer1.ReportSource = @openFileDialog1.FileName;

  //加载水晶报表，将报表文件绑定到CrystalReportView 控件;

               catch(Exception error)

               MessageBox.Show(error.ToString(),"错误");

5、OK！按Ctrl+F5运行吧。

可以浏览你系统内现有的报表实例：

...\Program Files\Microsoft Visual Studio .NET\Crystal Reports\Samples\Reports\Feature Examples\Chart.rpt

整个源程序代码如下：

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;

namespace WindowsApplication10

               /// <summary>

               /// Form1 的摘要说明。

               /// </summary>

               public class Form1 : System.Windows.Forms.Form

private CrystalDecisions.Windows.Forms.CrystalReportViewer crystalReportViewer1;

               private System.Windows.Forms.Button button1;

               private System.Windows.Forms.OpenFileDialog openFileDialog1;

               /// <summary>

        /// 必需的设计器变量。

       /// </summary>

               private System.ComponentModel.Container components = null;

                               public Form1()

//

      // Windows 窗体设计器支持所必需的

//

               InitializeComponent();

//

                               // TODO: 在 InitializeComponent 调用后添加任何构造函数代码

//

               /// <summary>

               /// 清理所有正在使用的资源。

               /// </summary>

               protected override void Dispose( bool disposing )

               if( disposing )

               if (components != null)

               components.Dispose();

base.Dispose( disposing );

               #region Windows Form Designer generated code

               /// <summary>

               /// 设计器支持所需的方法 - 不要使用代码编辑器修改

               /// 此方法的内容。

               /// </summary>

               private void InitializeComponent()

               this.crystalReportViewer1 = new

CrystalDecisions.Windows.Forms.CrystalReportViewer();

               this.button1 = new System.Windows.Forms.Button();

               this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();

               this.SuspendLayout();

//

               // crystalReportViewer1

//

               this.crystalReportViewer1.ActiveViewIndex = -1;

               this.crystalReportViewer1.Dock

= System.Windows.Forms.DockStyle.Fill;

               this.crystalReportViewer1.DockPadding.Bottom = 50;

               this.crystalReportViewer1.DockPadding.Left = 5;

               this.crystalReportViewer1.DockPadding.Right = 5;

               this.crystalReportViewer1.DockPadding.Top = 5;

               this.crystalReportViewer1.Name = "crystalReportViewer1";

               this.crystalReportViewer1.ReportSource = null;

               this.crystalReportViewer1.Size = new System.Drawing.Size(292, 273);

               this.crystalReportViewer1.TabIndex = 0;

//

// button1

//

         this.button1.Anchor = System.Windows.Forms.AnchorStyles.Bottom;

         this.button1.Location = new System.Drawing.Point(104, 240);

               this.button1.Name = "button1";

               this.button1.TabIndex = 1;

               this.button1.Text = "打开报表";

               this.button1.Click += new System.EventHandler(this.button1_Click);

//

               // openFileDialog1

//

this.openFileDialog1.Filter = "Crystal Report (*.rpt)|*.rpt|所有文件(*.*)|*.*";

               this.openFileDialog1.Title = "打开水晶报表";

//

// Form1

//

this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);

this.ClientSize = new System.Drawing.Size(292, 273);

this.Controls.AddRange(new System.Windows.Forms.Control[] {

 this.button1,

 this.crystalReportViewer1});

this.Name = "Form1";

this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;

this.Text = "水晶报表浏览器";

this.ResumeLayout(false);

#endregion

/// <summary>

/// 应用程序的主入口点。

/// </summary>

[STAThread]

static void Main()

Application.Run(new Form1());

private void button1_Click(object sender, System.EventArgs e)

try

if(openFileDialog1.ShowDialog()==DialogResult.OK)

this.crystalReportViewer1.ReportSource = @openFileDialog1.FileName;

  //加载水晶报表，将资源报表绑定到水晶报表查看器

                               catch(Exception error)

               MessageBox.Show(error.ToString(),"错误");  //处理异常错误

事实上，将报表绑定到CrystalReportViewer控件有很多方法。

this.crystalReportViewer1.Dock = System.Windows.Forms.DockStyle.Fill;

//停靠方式为充满整个窗体

//展开+DockPadding

this.crystalReportViewer1.DockPadding.Bottom = 50;

 //底部空出放置Button的区域

this.crystalReportViewer1.DockPadding.Left = 5;

this.crystalReportViewer1.DockPadding.Right = 5;

this.crystalReportViewer1.DockPadding.Top = 5;

this.crystalReportViewer1.ReportSource = null;

//先不载入报表资源