ASP.NET中动态控制RDLC报表

public MemoryStream GenerateRdlc()
{
　XmlDocument sourceDoc = new XmlDocument();
　string path = AppDomain.CurrentDomain.BaseDirectory + "Test/OrderList.rdlc";
　sourceDoc.Load(path);
　Hashtable reportColumns = GetReportColumns(sourceDoc.LastChild);
　//just remove
　for (int i = 0; i ＜ reportColumns.Count; i++)
　{
　　if (!FindReportCoulmns(reportColumns[i].ToString()))
　　{
　　　RemoveColumnFromRdlc(sourceDoc.LastChild, i);
　　}
　}

　MemoryStream ms = new MemoryStream();
　XmlSerializer serializer = new XmlSerializer(typeof(XmlDocument));
　serializer.Serialize(ms, sourceDoc);
　ms.Position = 0;
　return ms;
}

private Hashtable GetReportColumns(XmlNode root)
{
　Hashtable cols = new Hashtable();
　//XmlNamespaceManager s=new XmlNamespaceManager(
　　XmlNode cells = FindChildNode(root,"Body/ReportItems/Table/Header/TableRows/TableRow/TableCells");
　for (int i = 0; i ＜ cells.ChildNodes.Count; i++)
　{
　　XmlNode cell =FindChildNode( cells.ChildNodes[i],"ReportItems/Textbox/DataElementName");
　　cols[i] = cell.InnerText;
　}
　return cols;
}

this.ReportViewer1.LocalReport.LoadReportDefinition(this.Report.GenerateRdlc());
this.ReportViewer1.LocalReport.DataSources.Add(new ReportDataSource("DataSet1", result.Tables[0]));
this.ReportViewer1.LocalReport.Refresh();

1＜?xml version="1.0" encoding="utf-8"?＞
2＜Report xmlns="http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition" xmlns:rd="http://schemas.microsoft.com/SQLServer/reporting/reportdesigner"＞
3 ＜DataSources＞
4 ＜DataSource Name="ConnectionString"＞
5 ＜ConnectionProperties＞
6 ＜ConnectString /＞
7 ＜DataProvider＞SQL＜/DataProvider＞
8 ＜/ConnectionProperties＞
9 ＜rd:DataSourceID＞073016a7-6cb0-4e06-a6fd-f5882a039188＜/rd:DataSourceID＞
10 ＜/DataSource＞
11 ＜/DataSources＞
12 ＜BottomMargin＞2.5cm＜/BottomMargin＞
13 ＜RightMargin＞2.5cm＜/RightMargin＞
14 ＜PageWidth＞21cm＜/PageWidth＞
15 ＜rd:DrawGrid＞true＜/rd:DrawGrid＞
16 ＜InteractiveWidth＞21cm＜/InteractiveWidth＞
17 ＜rd:GridSpacing＞0.25cm＜/rd:GridSpacing＞
18 ＜rd:SnapToGrid＞true＜/rd:SnapToGrid＞
19 ＜Body＞
20 ＜ColumnSpacing＞1cm＜/ColumnSpacing＞
21 ＜ReportItems＞
22 ＜Chart Name="chart1"＞