在推模式中编程组装的Dataset里的SQL语句中的字段要与水晶报表里的SQL语句字段一致。简单的说,推模式中的水晶报表是个模板,把在设计器里报表的格式设好后,再组装DataSet就可以生成报表了。
【WEB方式下】
using CrystalDecisions.Shared;
using CrystalDecisions.CrystalReports.Engine;
using System.Data.SqlClient;
protected void Button_push_Click(object sender, EventArgs e)
{
string sql = "SELECT T1, T2, T3 FROM T where T1='a'";
string DBConfig_sql =@"Data Source=SYWZSWL\SQLEXPRESS;Initial Catalog=Test;User ID=sa;Password=123456";
DataSet ds = new DataSet();
SqlConnection sqlCon = new SqlConnection(DBConfig_sql);
SqlCommand sqlCmd = new SqlCommand(sql, sqlCon);
SqlDataAdapter sqlAd = new SqlDataAdapter();
sqlAd.SelectCommand = sqlCmd;
sqlAd.Fill(ds, "sql");
CrystalReportSource1.ReportDocument.Load(Server.MapPath("CrystalReport.rpt"));
//注意此处必需指明Dataset中的表的名称,否则会提示“您请求的报表需要更多信息.”
CrystalReportSource1.ReportDocument.SetDataSource(ds.Tables["sql"]);
//{?}中的参数可以不用赋值,即使赋了值也不起作用。
// CrystalReportSource1.ReportDocument.ParameterFields["Parm"].CurrentValues.AddValue("1234567");
CrystalReportSource1.ReportDocument.ParameterFields["Title"].CurrentValues.AddValue("这时推模式的报表样例!");
CrystalReportSource1.DataBind();
CrystalReportViewer1.ReportSource = CrystalReportSource1;
CrystalReportViewer1.DataBind();
}
//////
【WEB方式下】
using CrystalDecisions.Shared;
using CrystalDecisions.CrystalReports.Engine;
using System.Data.SqlClient;
protected void Button_push_Click(object sender, EventArgs e)
{
string sql = "SELECT T1, T2, T3 FROM T where T1='a'";
string DBConfig_sql =@"Data Source=SYWZSWL\SQLEXPRESS;Initial Catalog= Test;UserID=sa;Password=123456";
DataSet ds = new DataSet();
SqlConnection sqlCon = new SqlConnection(DBConfig_sql);
SqlCommand sqlCmd = new SqlCommand(sql, sqlCon);
SqlDataAdapter sqlAd = new SqlDataAdapter();
sqlAd.SelectCommand = sqlCmd;
sqlAd.Fill(ds, "sql");
CrystalReportSource1.ReportDocument.Load(Server.MapPath("CrystalReport.rpt"));
//注意此处必需指明Dataset中的表的名称,否则会提示“您请求的报表需要更多信息.”
CrystalReportSource1.ReportDocument.SetDataSource(ds.Tables["sql"]);
//{?}中的参数可以不用赋值,即使赋了值也不起作用。
// CrystalReportSource1.ReportDocument.ParameterFields["Parm"].CurrentValues.AddValue("1234567");
CrystalReportSource1.ReportDocument.ParameterFields["Title"].CurrentValues.AddValue("这时推模式的报表样例!");
CrystalReportSource1.DataBind();
CrystalReportViewer1.ReportSource = CrystalReportSource1;
CrystalReportViewer1.DataBind();
}
【FORM方式下】
private void Form1_Load(object sender, EventArgs e)
{
//推模式
string sql = "SELECT T1, T2, T3 FROM T where T1='a'";
string DBConfig_sql = @"Data Source=SYWZSWL\SQLEXPRESS;Initial Catalog=Test;User ID=sa;Password=123456";
DataSet ds = new DataSet();
SqlConnection sqlCon = new SqlConnection(DBConfig_sql);
SqlCommand sqlCmd = new SqlCommand(sql, sqlCon);
SqlDataAdapter sqlAd = new SqlDataAdapter();
sqlAd.SelectCommand = sqlCmd;
sqlAd.Fill(ds, "sql");
crystalReport1.Load(Application.StartupPath + "CrystalReport.rpt");
crystalReport1.SetDataSource(ds.Tables["sql"]);
//{?}中的参数可以不用赋值,即使赋了值也不起作用。
// CrystalReportSource1.ReportDocument.ParameterFields["Parm"].CurrentValues.AddValue("1234567");
crystalReport1.ParameterFields["Title"].CurrentValues.AddValue("这时推模式的报表样例!");
crystalReportViewer1.ReportSource = crystalReport1;
}
/////
【FORM方式下】
private void Form1_Load(object sender, EventArgs e)
{
//推模式
string sql = "SELECT T1, T2, T3 FROM T where T1='a'";
string DBConfig_sql = @"Data Source=SYWZSWL\SQLEXPRESS;Initial Catalog= Test;UserID=sa;Password=123456";
DataSet ds = new DataSet();
SqlConnection sqlCon = new SqlConnection(DBConfig_sql);
SqlCommand sqlCmd = new SqlCommand(sql, sqlCon);
SqlDataAdapter sqlAd = new SqlDataAdapter();
sqlAd.SelectCommand = sqlCmd;
sqlAd.Fill(ds, "sql");
crystalReport1.Load(Application.StartupPath + "CrystalReport.rpt");
crystalReport1.SetDataSource(ds.Tables["sql"]);
//{?}中的参数可以不用赋值,即使赋了值也不起作用。
// CrystalReportSource1.ReportDocument.ParameterFields["Parm"].CurrentValues.AddValue("1234567");
crystalReport1.ParameterFields["Title"].CurrentValues.AddValue("这时推模式的报表样例!");
crystalReportViewer1.ReportSource = crystalReport1;
}