[摘]在ASP.NET下使用水晶报表一（零点起步）

转自http://202.102.240.86/~fjw/Mystudy/crystal.htm
摘要如下：
1。第一步是添加新项CrystalReport1
2。在CrystalReport1.rpt面页右键选择:”数据库”à”添加/删除数据库”出现下面对话框:
然后点开OLE DB(ADO)的加号,将弹出选择数据库的对话框
其中”项目数据”里面的”当前连接”显示的就是OLE DB(ADO)的连接,这样就可以将表添加到右边的”选定的表”中了(切记:不要既从”OLE DB” 中选表或命令又从”当前连接”中选,如果你用了数据集,也是一样的道理,否则全提示出”登陆失败”的错误!)
3。字段资料管理器里面”数据库字段”里把字段直接拖到CrystalReport.rpt里面了.布置好布局.
4。回到WebForm1.aspx页面,选择控件CrystalReportViewer将其放到页面上。
5。代码using CrystalDecisions.Shared;
using CrystalDecisions.CrystalReports.Engine;在WebForm1.aspx.cs的Form_Load里面添加代码:TableLogOnInfo logOnInfo = new TableLogOnInfo(); ReportDocument rpdMy0= new ReportDocument(); logOnInfo.ConnectionInfo.ServerName = "NNN"; logOnInfo.ConnectionInfo.Password="dong"; logOnInfo.ConnectionInfo.DatabaseName="Lab"; logOnInfo.ConnectionInfo.UserID = "sa"; String path = Server.MapPath("CrystalReport2.rpt"); rpdMy0.Load(path); rpdMy0.Database.Tables[0].ApplyLogOnInfo(logOnInfo); CrystalReportViewer1.ReportSource = rpdMy0;其中:TableLogOnInfo类是: 提供属性，以便检索和设置表连接选项.它有一个连接的属性ConnectionInfo,用来设置与数据库的连接.如上面的ServerName等.生成一个报表文档对象将前面我们做好的那个CrystalReport1.rpt赋给它.在这里要注意的是Database属性!然后把报表对象做为CrystalReportViewer1的数据源.或者，获得数据库的方法改为直接从数据库获得DataSetusing System.Data.SqlClient;
using System.Collections.Specialized;string strConn=System.Configuration.ConfigurationSettings.AppSettings["DB"].ToString();
using (SqlConnection conn = new SqlConnection(strConn))
{
SqlDataAdapter da = new SqlDataAdapter(strSQL,conn);//strSQL是SQL语言"select * from dbo.table1"
DataSet ds=new DataSet();
da.Fill( ds);
CrystalReport1 cr1 = new CrystalReport1();
cr1.SetDataSource( ds);
CrystalReportViewer1.ReportSource = cr1; }using CrystalDecisions.Shared;using CrystalDecisions.CrystalReports.Engine;在WebForm1.aspx.cs的Form_Load里面添加代码:TableLogOnInfo logOnInfo = new TableLogOnInfo(); ReportDocument rpdMy0= new ReportDocument(); logOnInfo.ConnectionInfo.ServerName = "NNN"; logOnInfo.ConnectionInfo.Password="dong"; logOnInfo.ConnectionInfo.DatabaseName="Lab"; logOnInfo.ConnectionInfo.UserID = "sa"; String path = Server.MapPath("CrystalReport2.rpt"); rpdMy0.Load(path); rpdMy0.Database.Tables[0].ApplyLogOnInfo(logOnInfo); CrystalReportViewer1.ReportSource = rpdMy0;其中:TableLogOnInfo类是: 提供属性，以便检索和设置表连接选项.它有一个连接的属性ConnectionInfo,用来设置与数据库的连接.如上面的ServerName等.生成一个报表文档对象将前面我们做好的那个CrystalReport1.rpt赋给它.在这里要注意的是Database属性!然后把报表对象做为CrystalReportViewer1的数据源.或者，获得数据库的方法改为直接从数据库获得DataSetusing System.Data.SqlClient;
using System.Collections.Specialized;string strConn=System.Configuration.ConfigurationSettings.AppSettings["DB"].ToString();
using (SqlConnection conn = new SqlConnection(strConn))
{
SqlDataAdapter da = new SqlDataAdapter(strSQL,conn);//strSQL是SQL语言"select * from dbo.table1"
DataSet ds=new DataSet();
da.Fill( ds);
CrystalReport1 cr1 = new CrystalReport1();
cr1.SetDataSource( ds);
CrystalReportViewer1.ReportSource = cr1; }
using CrystalDecisions.Shared;using CrystalDecisions.CrystalReports.Engine;在WebForm1.aspx.cs的Form_Load里面添加代码:TableLogOnInfo logOnInfo = new TableLogOnInfo(); ReportDocument rpdMy0= new ReportDocument(); logOnInfo.ConnectionInfo.ServerName = "NNN"; logOnInfo.ConnectionInfo.Password="dong"; logOnInfo.ConnectionInfo.DatabaseName="Lab"; logOnInfo.ConnectionInfo.UserID = "sa"; String path = Server.MapPath("CrystalReport2.rpt"); rpdMy0.Load(path); rpdMy0.Database.Tables[0].ApplyLogOnInfo(logOnInfo); CrystalReportViewer1.ReportSource = rpdMy0;其中:TableLogOnInfo类是: 提供属性，以便检索和设置表连接选项.它有一个连接的属性ConnectionInfo,用来设置与数据库的连接.如上面的ServerName等.生成一个报表文档对象将前面我们做好的那个CrystalReport1.rpt赋给它.在这里要注意的是Database属性!然后把报表对象做为CrystalReportViewer1的数据源.或者，获得数据库的方法改为直接从数据库获得DataSetusing System.Data.SqlClient;
using System.Collections.Specialized;string strConn=System.Configuration.ConfigurationSettings.AppSettings["DB"].ToString();
using (SqlConnection conn = new SqlConnection(strConn))
{
SqlDataAdapter da = new SqlDataAdapter(strSQL,conn);//strSQL是SQL语言"select * from dbo.table1"
DataSet ds=new DataSet();
da.Fill( ds);
CrystalReport1 cr1 = new CrystalReport1();
cr1.SetDataSource( ds);
CrystalReportViewer1.ReportSource = cr1; }