XML主要用来描述打印报表的名称，数据来源，格式，分页打印等信息，具体标签可自己定义，下面是笔者针对会员管理系统报表打印所制定的XML文档：
Memberlist.xml
| 以下为引用的内容： 〈xml version="1.0" encoding="utf-8" >
〈XmlReport>
〈Page>
〈Title>Member information〈/Title>
〈ApplyXSLT>〈/ApplyXSLT>
〈/Page>
〈Report>
〈Title>Member list〈/Title>
〈TableName>Memberlist〈/TableName>
〈SQLdataConnection>Data Source=localhost;User ID=sa;password=;Initial Catalog=XMLReport;〈/SQLdataConnection>
〈OleDbConnection>〈/OleDbConnection>
〈Sql>Select MemberID, prefix+'. '+ firstname+' '+ surname AS [Member Name],CityOrTown,State,PostCode, '$'+convert(varchar(12),FeesPaid) As Fees From Members;〈/Sql>
〈PageSize>10〈/PageSize>
〈/Report>
〈Report>
〈Title>Member Summary〈/Title>
〈TableName>MemberSummary〈/TableName>
〈SQLdataConnection>Data Source=localhost;User ID=sa;password=;Initial Catalog=XMLReport;〈/SQLdataConnection>
〈OleDbConnection>〈/OleDbConnection>
〈Sql>Select Count(MemberID) As [Member Count], '$'+convert(varchar(12),Sum(FeesPaid)) As [Fees Total] From Members;〈/Sql>
〈PageSize>〈/PageSize>
〈/Report>
〈/XmlReport> |
标签说明：
Page Title:报表标题
ApplyXSLT:应用样式表定制报表
SQLdaraConnection: 数据源连接字串，数据提供者为SQL server
OleDbConnection:数据源连接字串，数据提供者为OleDb
Sql:选取报表数据的sql语句
PageSize:分页打印，每页显示的记录条数
读者还可以自定义一些更精
确的标签来控制报表。
3.2 创建通用打印页面
page_load时读取要打印的报表名
| 以下为引用的内容： xmlFile = Request.QueryString["report"].ToString() + ".xml";
private void BindReports()
{
DataSet dsXml = new DataSet();
try
{
dsXml.ReadXml(Server.MapPath("Reports\\" + xmlFile));
DataTable dtPage = dsXml.Tables["Page"];
DataTable dtReport = dsXml.Tables["Report"];
labelPageTitle.Text = dtPage.Rows[0]["Title"].ToString();
for(int i = 0;i 〈 dtReport.Rows.Count; i++)
{
GetLabel(i).Text = dtReport.Rows[i]["Title"].ToString();
if(dtReport.Rows[i]["SQLdataConnection"].ToString() != String.Empty dtReport.Rows[i]["Sql"].ToString() != String.Empty dtReport.Rows[i]["OleDbConnection"].ToString() != String.Empty)
{
DataGrid dg = GetDataGrid(i);
if(dtReport.Rows[i]["PageSize"].ToString() != String.Empty)
{
//分页打印
dg.AllowPaging = true;
dg.PagerStyle.Mode = PagerMode.NumericPages;
dg.PagerStyle.PageButtonCount = 10;
dg.PageSize = Convert.ToInt32(dtReport.Rows[i]["PageSize"].ToString());
}
DataSet ds = new DataSet();
//从Report.xml读取数据源信息
if(dtReport.Rows[i]["SQLdataConnection"].ToString() != String.Empty)
{
//数据提供者为SQL Server
SqlConnection Conn = new SqlConnection(dtReport.Rows[i]["SQLdataConnection"].ToString());
SqlDataAdapter myDataAdapt = new SqlDataAdapter(dtReport.Rows[i]["Sql"].ToString(),Conn);
myDataAdapt.Fill(ds,dtReport.Rows[i]["TableName"].ToString());
}
else if(dtReport.Rows[i]["OleDbConnection"].ToString() != String.Empty)
{
//数据提供者为OLE DB
OleDbConnection Conn = new OleDbConnection(dtReport.Rows[i]["OleDbConnection"].ToString());
OleDbDataAdapter myDataAdapt = new OleDbDataAdapter(dtReport.Rows[i]["Sql"].ToString(),Conn);
myDataAdapt.Fill(ds,dtReport.Rows[i]["TableName"].ToString());
}
//用通用页面显示报表
dg.DataSource = ds;
dg.DataBind();
}
}
}
catch
{
labelPageTitle.Text = "The requested report could not be found";
}
}
|
3.3 创建定制打印页面
需要在XML文档ApplyXSLT标签内添加对应的xslt文件名，并制作相应的样式表放在项目的xslt文件夹下即可。如下代码添加到通用打印程序中。
繁體中文
ASP.NET应用XML技术实现Web报表打印
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