首先封装一个公共类，统一来操作RDLC报表
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Xml;
using System.Data;
using Microsoft.Reporting.WebForms;
using System.Text;
using System.Collections;
using System.IO;
using System.Reflection;
using System.Xml.Serialization;
namespace WebApplication3
{
public class DynamicReport : IDynamicReport
{
#region 空白文档
/// <summary>
/// 空白文档的xml文件
/// </summary>
protected string _docTemplate =
"<?xml version="1.0" encoding="utf-8"?><Report xmlns:rd="http://schemas.microsoft.com/SQLServer/reporting/reportdesigner" xmlns="http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition">" +
"<DataSources>" +
" <DataSource Name="DummyDataSource">" +
" <ConnectionProperties>" +
" <DataProvider>SQL</DataProvider>" +
" <ConnectString />" +
" </ConnectionProperties>" +
" <rd:DataSourceID>3eecdab9-6b4b-4836-ad62-95e4aee65ea8</rd:DataSourceID>" +
" </DataSource>" +
"</DataSources>" +
"<DataSets>@DataSets</DataSets>" +
"<Body>" +
"<ReportItems>@Title@Tablix" +
"</ReportItems>" +
"<Style />" +
"<Height>8cm</Height>" +
"</Body>" +
"<Width>17cm</Width>" +
"<Page>" +
"<PageHeight>29.7cm</PageHeight>" +
"<PageWidth>21cm</PageWidth>" +
"<LeftMargin>1.8cm</LeftMargin>" +
"<RightMargin>1.8cm</RightMargin>" +
"<TopMargin>1.8cm</TopMargin>" +
"<BottomMargin>1.8cm</BottomMargin>" +
"<ColumnSpacing>0.13cm</ColumnSpacing>" +
"<Style />" +
"</Page>" +
"<rd:ReportID>809f16cf-ea78-4469-bf43-965c4afe69d0</rd:ReportID>" +
"<rd:ReportUnitType>Cm</rd:ReportUnitType>" +
"</Report>";
protected string TitlePattern =
" <Textbox Name="Textbo@TextboxName"> "
+ @"<CanGrow>true</CanGrow>
<KeepTogether>true</KeepTogether>
<Paragraphs>
<Paragraph>
<TextRuns>
<TextRun>
<Value>@Title</Value>
<Style>@FontStyle</Style>
</TextRun>
</TextRuns>
<Style>@Style</Style>
</Paragraph>
</Paragraphs>
<rd:DefaultName>Textbo@TextboxName</rd:DefaultName>
<Top>@TopPositioncm</Top>
<Left>1cm</Left>
<Height>0.83813cm</Height>
<Width>14.35207cm</Width>
<ZIndex>1</ZIndex>
<Style>
<Border>
<Style>None</Style>
</Border>
<PaddingLeft>2pt</PaddingLeft>
<PaddingRight>2pt</PaddingRight>
<PaddingTop>2pt</PaddingTop>
<PaddingBottom>2pt</PaddingBottom>
</Style>
</Textbox>";
#endregion
private ReportViewer _report;
private List<ReportColoumStyle> _coloumStyle = new List<ReportColoumStyle>();
private List<ReportItemPattern> _reportItemPatterns = new List<ReportItemPattern>();
private List<string> _reportTitlePatterns = new List<string>();
private List<ReportItemPattern> _reportHeadPatterns = new List<ReportItemPattern>();
internal const float ColoumWidth = 1.6F; //行宽
public ReportType ReportType { get; set; }
public DynamicReport()
{
}
/// <summary>
/// 从现有报表中载入报表并进行改动
/// </summary>
/// <param name="url"></param>
public void LoadReport(string url)
{
try
{
_docTemplate = File.ReadAllText(url);
}
catch (Exception ex)
{
}
}
public void SetReport(ReportViewer reportViewer)
{
this._report = reportViewer;
}
public void SetColoumStyle(List<ReportColoumStyle> coloumStyle)
{
this._coloumStyle = coloumStyle;
}
public void AddText(string text)
{
if (!string.IsNullOrEmpty(text))
{
var pos = CaculatePlacePostion();
var titlePattern = TitlePattern
.Replace("@Title", text)
.Replace("@TopPosition", pos.ToString())
.Replace("@TextboxName", _reportTitlePatterns.Count.ToString())
.Replace("@FontStyle", "<FontFamily>微软雅黑</FontFamily><FontSize>12pt</FontSize>")
.Replace("@Style", "<TextAlign>Center</TextAlign>");
_reportTitlePatterns.Add(titlePattern);
}
}
public void AddText(string text, int chapterGrade)
{
if (!string.IsNullOrEmpty(text))
{
var pos = CaculatePlacePostion();
var titlePattern = TitlePattern
.Replace("@Title", text)
.Replace("@TopPosition", pos.ToString())
.Replace("@TextboxName", _reportTitlePatterns.Count.ToString());
switch (chapterGrade)
{
case 1:
titlePattern = titlePattern.Replace("@FontStyle",
"<FontFamily>宋体</FontFamily><FontSize>18pt</FontSize><Color>#000000</Color>")
.Replace("@Style", "<TextAlign>Center</TextAlign>");
break;
case 2:
titlePattern = titlePattern.Replace("@FontStyle",
"<FontFamily>黑体</FontFamily><FontSize>14pt</FontSize><Color>#000000</Color>")
.Replace("@Style", "<TextAlign>Left</TextAlign>");
break;
case 3:
titlePattern = titlePattern.Replace("@FontStyle",
"<FontFamily>宋体</FontFamily><FontSize>12pt</FontSize><FontWeight>Bold</FontWeight>")
.Replace("@Style", "<TextAlign>Left</TextAlign>");
break;
default:
case 10:
titlePattern = titlePattern.Replace("@FontStyle",
"<FontFamily>宋体</FontFamily><FontSize>12pt</FontSize>")
.Replace("@Style", "<LineHeight>22pt</LineHeight>");
break;
}
_reportTitlePatterns.Add(titlePattern);
}
}
public void AddData<T>(IEnumerable<T> data)
{
if (data.Count() != 0)
{
var properites = typeof(T).GetProperties(); //得到实体类属性的集合
AddReportItemPattern(properites.Select(p => p.Name).ToArray(), data);
}
}
public void AddData(DataTable dataTable)
{
if (dataTable != null)
{
var coloumNames = new List<string>();
foreach (DataColumn dataColumn in dataTable.Columns)
{
var protertyName = dataColumn.ColumnName;
coloumNames.Add(protertyName);
}
AddReportItemPattern(coloumNames.ToArray(), dataTable);
}
}
/// <summary>
/// 计算開始摆放的位置
/// </summary>
/// <returns></returns>
protected float CaculatePlacePostion()
{
//每一个标题的高度
float titleCount = _reportTitlePatterns.Count * 1f;
//每一个数据表的高度
float itemCount = _reportItemPatterns.Count * 2f;
// 每一个空表头的高度
float emptyItemCount = _reportHeadPatterns.Count * 0.5f;
switch (ReportType)
{
case ReportType.Tables:
return titleCount + itemCount + emptyItemCount + 0.5f;
case ReportType.Chart:
case ReportType.Finally:
return titleCount + itemCount + emptyItemCount + 25.7f;
}
return 0f;
}
/// <summary>
/// 添加一个报表
/// </summary>
/// <param name="coloumNames"></param>
/// <param name="data"></param>
/// <param name="dataType"></param>
protected void AddReportItemPattern(string[] coloumNames, dynamic data)
{
var fields = new StringBuilder();
var coloums = new StringBuilder();
var tablixHearders = new StringBuilder();
var tablixCells = new StringBuilder();
var tablixMembers = new StringBuilder();
var currentNamePrefix = _reportItemPatterns.Count + _reportHeadPatterns.Count + 1;
var tableWidth = 0F;
var dataRows = GetDataRowsCount(data); //数据行数
foreach (var coloumName in coloumNames)
{
var coloumWidth = ColoumWidth;
var textAlign = TextAlign.Right;
var reportColoumStyle = _coloumStyle.FirstOrDefault(r => r.ColoumName == coloumName);
if (reportColoumStyle != null)
{
textAlign = reportColoumStyle.TextAlign;
coloumWidth = reportColoumStyle.ColoumWidth;
}
tableWidth += coloumWidth;
var bottomBorder = string.Empty; //每一个单元格底部border
if (dataRows == 0)
{
bottomBorder = "<BottomBorder><Style>None</Style></BottomBorder>";
}
var coloumValue = coloumName;
//例外,假设coloumName包括Coloum之类的字段,则将value设成空
if (coloumName.IndexOf("Column", System.StringComparison.Ordinal) > -1)
{
coloumValue = " ";
}
fields.AppendFormat(
"<Field Name="{0}"><DataField>{0}</DataField><rd:TypeName>System.String</rd:TypeName></Field>",
coloumName);
coloums.AppendFormat("<TablixColumn><Width>{0}cm</Width></TablixColumn>", coloumWidth);
tablixHearders.AppendFormat("<TablixCell><CellContents>" +
"<Textbox Name="Textbox{0}{1}"><CanGrow>true</CanGrow><KeepTogether>true</KeepTogether><Paragraphs><Paragraph>" +
"<TextRuns><TextRun><Value>{2}</Value><Style /></TextRun></TextRuns><Style><TextAlign>Center</TextAlign></Style></Paragraph></Paragraphs>" +
"<rd:DefaultName>Textbox{0}{1}</rd:DefaultName><Style><Border><Color>LightGrey</Color><Style>Solid</Style></Border>{3}" +
"<PaddingLeft>2pt</PaddingLeft><PaddingRight>2pt</PaddingRight><PaddingTop>2pt</PaddingTop><PaddingBottom>2pt</PaddingBottom></Style></Textbox></CellContents></TablixCell>",
coloumName, currentNamePrefix, coloumValue, bottomBorder);
tablixCells.AppendFormat(
"<TablixCell><CellContents><Textbox Name="{0}{1}1"><CanGrow>true</CanGrow><KeepTogether>true</KeepTogether>" +
"<Paragraphs><Paragraph><TextRuns><TextRun><Value>=Fields!{0}.Value</Value><Style /></TextRun></TextRuns><Style><TextAlign>{2}</TextAlign></Style></Paragraph></Paragraphs>" +
"<rd:DefaultName>{0}{1}1</rd:DefaultName><Style><Border><Color>LightGrey</Color><Style>Solid</Style></Border>" +
"<PaddingLeft>2pt</PaddingLeft><PaddingRight>2pt</PaddingRight><PaddingTop>2pt</PaddingTop><PaddingBottom>2pt</PaddingBottom></Style></Textbox></CellContents></TablixCell>",
coloumName, currentNamePrefix, textAlign);
tablixMembers.AppendFormat("<TablixMember />");
}
//计算表格应该离左边多少距离
var leftPosition = 0F;
if (tableWidth < 17)
{
leftPosition = (17F - tableWidth) / 2;
}
var dataSetName = string.Format("Data{0}", _reportItemPatterns.Count + _reportHeadPatterns.Count + 1);
var reportItemPattern = new ReportItemPattern();
reportItemPattern.Data = DynamicReportExtension.RemoveZeroData(data);
reportItemPattern.DataSetName = dataSetName;
reportItemPattern.DataSetString =
reportItemPattern.DataSetPattern
.Replace("@DataSetName", dataSetName)
.Replace("@Fields", fields.ToString());
reportItemPattern.TablixString =
reportItemPattern.TablixPattern
.Replace("@DataSetName", dataSetName)
.Replace("@TablixColumns", coloums.ToString())
.Replace("@TablixHeader", tablixHearders.ToString())
.Replace("@TablixCells", tablixCells.ToString())
.Replace("@TablixMember", tablixMembers.ToString())
.Replace("@TopPosition", CaculatePlacePostion().ToString())
.Replace("@LeftPostion", leftPosition.ToString());
//读取行数,假设是空行就加到新的
if (dataRows == 0)
{
_reportHeadPatterns.Add(reportItemPattern);
}
else
{
_reportItemPatterns.Add(reportItemPattern);
}
}
/// <summary>
/// 得到某种类型数据的数量
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
private int GetDataRowsCount(dynamic data)
{
if (data is DataTable)
{
return ((DataTable)data).Rows.Count;
}
else if (data is IEnumerable)
{
return Enumerable.Count(data);
}
else return 0;
}
/// <summary>
/// 终于显示报表
/// </summary>
public void ShowReport()
{
//将每一个patter转换
if (_reportItemPatterns.Count > 0 || _reportTitlePatterns.Count > 0)
{
var dataSetsString = new StringBuilder();
var tablixString = new StringBuilder();
foreach (var reportItemPattern in _reportItemPatterns)
{
dataSetsString.Append(reportItemPattern.DataSetString);
tablixString.Append(reportItemPattern.TablixString);
}
foreach (var reportItemPattern in _reportHeadPatterns)
{
dataSetsString.Append(reportItemPattern.DataSetString);
tablixString.Append(reportItemPattern.TablixString);
}
var reportTitleString = new StringBuilder();
foreach (var reportTitlePattern in _reportTitlePatterns)
{
reportTitleString.Append(reportTitlePattern);
}
//把文档中的文字替换掉
switch (ReportType)
{
case ReportType.Tables:
_docTemplate = _docTemplate.Replace("@DataSets", dataSetsString.ToString())
.Replace("@Tablix", tablixString.ToString())
.Replace("@Title", reportTitleString.ToString());
break;
case ReportType.Chart:
break;
case ReportType.Finally:
//替换datasetstring
var pos = _docTemplate.IndexOf("<Body>", StringComparison.Ordinal);
_docTemplate = _docTemplate.Insert(pos,
string.Format(
"<DataSources><DataSource Name="DummyDataSource"><ConnectionProperties><DataProvider>SQL</DataProvider><ConnectString /></ConnectionProperties><rd:DataSourceID>3eecdab9-6b4b-4836-ad62-95e4aee65ea8</rd:DataSourceID></DataSource></DataSources><DataSets>{0}</DataSets>",
dataSetsString));
//替换Tablix
pos = _docTemplate.IndexOf("<ReportItems>", StringComparison.Ordinal);
_docTemplate = _docTemplate.Insert(pos + 13, tablixString.ToString());
//替换title
_docTemplate = _docTemplate.Insert(pos + 13, reportTitleString.ToString());
break;
}
var doc = new XmlDocument();
doc.LoadXml(_docTemplate);
Stream stream = GetRdlcStream(doc);
//载入报表定义
_report.LocalReport.LoadReportDefinition(stream);
_report.LocalReport.DataSources.Clear();
foreach (var reportItemPattern in _reportItemPatterns)
{
_report.LocalReport.DataSources
.Add(new ReportDataSource(reportItemPattern.DataSetName + "Data",
reportItemPattern.Data));
}
foreach (var reportItemPattern in _reportHeadPatterns)
{
_report.LocalReport.DataSources
.Add(new ReportDataSource(reportItemPattern.DataSetName + "Data",
reportItemPattern.Data));
}
_report.LocalReport.Refresh();
}
}
/// <summary>
/// 序列化到内存流
/// </summary>
/// <returns></returns>
protected Stream GetRdlcStream(XmlDocument xmlDoc)
{
Stream ms = new MemoryStream();
XmlSerializer serializer = new XmlSerializer(typeof(XmlDocument));
serializer.Serialize(ms, xmlDoc);
ms.Position = 0;
return ms;
}
}
public interface IDynamicReport
{
void SetReport(ReportViewer reportViewer);
void AddData<T>(IEnumerable<T> data);
void AddData(DataTable dataTable);
void ShowReport();
void LoadReport(string reportPath);
void SetColoumStyle(List<ReportColoumStyle> coloumStyle);
void AddText(string title);
}
public class ReportColoumStyle
{
public string ColoumName { get; set; }
public float ColoumWidth { get; set; }
public TextAlign TextAlign { get; set; }
public ReportColoumStyle()
{
ColoumWidth = DynamicReport.ColoumWidth;
}
}
public enum TextAlign
{
Left,
Center,
Right
}
public enum ReportType
{
Tables,
Chart,
Finally
}
internal enum DataType
{
DataTable,
Enumerable
}
internal class ReportItemPattern
{
public string DataSetName { get; set; }
public string DataSetString { get; set; }
public string TablixString { get; set; }
public dynamic Data { get; set; }
public string DataSetPattern
{
get
{
return " <DataSet Name="@DataSetNameData">" +
" <Fields>@Fields</Fields>" +
" <Query>" +
" <DataSourceName>DummyDataSource</DataSourceName>" +
" <CommandText />" +
" </Query>" +
" </DataSet>";
}
}
public string TablixPattern
{
get
{
return " <Tablix Name="Tablix@DataSetName">" +
" <TablixBody>" +
" <TablixColumns>@TablixColumns</TablixColumns>" +
" <TablixRows>" +
" <TablixRow>" +
" <Height>0.23622in</Height>" +
" <TablixCells>@TablixHeader</TablixCells>" +
" </TablixRow>" +
" <TablixRow>" +
" <Height>0.23622in</Height>" +
" <TablixCells>@TablixCells</TablixCells>" +
" </TablixRow>" +
" </TablixRows>" +
" </TablixBody>" +
" <TablixColumnHierarchy>" +
" <TablixMembers>@TablixMember</TablixMembers>" +
" </TablixColumnHierarchy>" +
" <TablixRowHierarchy>" +
" <TablixMembers>" +
" <TablixMember>" +
" <KeepWithGroup>After</KeepWithGroup>" +
" </TablixMember>" +
" <TablixMember>" +
" <Group Name="具体信息@DataSetName" />" +
" </TablixMember>" +
" </TablixMembers>" +
" </TablixRowHierarchy>" +
" <DataSetName>@DataSetNameData</DataSetName>" +
" <Top>@TopPositioncm</Top>" +
" <Left>@LeftPostioncm</Left>" +
" <Height>1.2cm</Height>" +
" <Width>14.35207cm</Width>" +
" <Style>" +
" <Border>" +
" <Style>None</Style>" +
" </Border>" +
" </Style>" +
"</Tablix>";
}
}
}
internal static class DynamicReportExtension
{
public static dynamic RemoveZeroData(this object data)
{
if (data is DataTable)
{
return ((DataTable)data).ChangeEachColumnTypeToString();
}
else if (data is IEnumerable)
{
var _data = ((IEnumerable)data).Cast<object>();
return _data.CopyToDataTable().RemoveZeroData();
}
return data;
}
public static DataTable ChangeEachColumnTypeToString(this DataTable dt)
{
DataTable tempdt = new DataTable();
foreach (DataColumn dc in dt.Columns)
{
DataColumn tempdc = new DataColumn();
tempdc.ColumnName = dc.ColumnName;
tempdc.DataType = typeof(String);
tempdt.Columns.Add(tempdc);
}
int coloumCount = dt.Columns.Count;
foreach (DataRow dr in dt.Rows)
{
var newrow = tempdt.NewRow();
for (int i = 0; i < coloumCount; i++)
{
var value = dr[i].ToString();
switch (value)
{
case "0":
case "0.00%":
newrow[i] = "-";
break;
default:
newrow[i] = value;
break;
}
}
tempdt.Rows.Add(newrow);
}
return tempdt;
}
}
internal static class DataSetLinqOperators
{
public static DataTable CopyToDataTable<T>(this IEnumerable<T> source)
{
return new ObjectShredder<T>().Shred(source, null, null);
}
public static DataTable CopyToDataTable<T>(this IEnumerable<T> source,
DataTable table, LoadOption? options)
{
return new ObjectShredder<T>().Shred(source, table, options);
}
}
internal class ObjectShredder<T>
{
private FieldInfo[] _fi;
private PropertyInfo[] _pi;
private Dictionary<string, int> _ordinalMap;
private Type _type;
public ObjectShredder()
{
_type = typeof(T);
_fi = _type.GetFields();
_pi = _type.GetProperties();
_ordinalMap = new Dictionary<string, int>();
}
public DataTable Shred(IEnumerable<T> source, DataTable table, LoadOption?
options)
{
if (typeof(T).IsPrimitive)
{
return ShredPrimitive(source, table, options);
}
if (table == null)
{
table = new DataTable(typeof(T).Name);
}
// now see if need to extend datatable base on the type T + build ordinal map
table = ExtendTable(table, typeof(T));
table.BeginLoadData();
using (IEnumerator<T> e = source.GetEnumerator())
{
while (e.MoveNext())
{
if (options != null)
{
table.LoadDataRow(ShredObject(table, e.Current), (LoadOption)options);
}
else
{
table.LoadDataRow(ShredObject(table, e.Current), true);
}
}
}
table.EndLoadData();
return table;
}
public DataTable ShredPrimitive(IEnumerable<T> source, DataTable table, LoadOption? options)
{
if (table == null)
{
table = new DataTable(typeof(T).Name);
}
if (!table.Columns.Contains("Value"))
{
table.Columns.Add("Value", typeof(T));
}
table.BeginLoadData();
using (IEnumerator<T> e = source.GetEnumerator())
{
Object[] values = new object[table.Columns.Count];
while (e.MoveNext())
{
values[table.Columns["Value"].Ordinal] = e.Current;
if (options != null)
{
table.LoadDataRow(values, (LoadOption)options);
}
else
{
table.LoadDataRow(values, true);
}
}
}
table.EndLoadData();
return table;
}
public DataTable ExtendTable(DataTable table, Type type)
{
// value is type derived T, may need to extend table.
foreach (FieldInfo f in type.GetFields())
{
if (!_ordinalMap.ContainsKey(f.Name))
{
DataColumn dc = table.Columns.Contains(f.Name) ?
table.Columns[f.Name]
:
table.Columns.Add(f.Name, f.FieldType);
_ordinalMap.Add(f.Name, dc.Ordinal);
}
}
foreach (PropertyInfo p in type.GetProperties())
{
if (!_ordinalMap.ContainsKey(p.Name))
{
DataColumn dc = table.Columns.Contains(p.Name) ?
table.Columns[p.Name]
:
table.Columns.Add(p.Name, p.PropertyType);
_ordinalMap.Add(p.Name, dc.Ordinal);
}
}
return table;
}
public object[] ShredObject(DataTable table, T instance)
{
FieldInfo[] fi = _fi;
PropertyInfo[] pi = _pi;
if (instance.GetType() != typeof(T))
{
ExtendTable(table, instance.GetType());
fi = instance.GetType().GetFields();
pi = instance.GetType().GetProperties();
}
Object[] values = new object[table.Columns.Count];
foreach (FieldInfo f in fi)
{
values[_ordinalMap[f.Name]] = f.GetValue(instance);
}
foreach (PropertyInfo p in pi)
{
values[_ordinalMap[p.Name]] = p.GetValue(instance, null);
}
return values;
}
}
}
以下的情况在前端绑定就能够
private DataTable CreateData()
{
DataTable dt = new DataTable();
dt.Columns.Add("专业名称");
dt.Columns.Add("学院");
dt.Columns.Add("就业去向");
for (int i = 0; i < 100; i++)
{
DataRow dr = dt.NewRow();
dr[0] = "我是"+i;
dr[1] = "三年级";
dr[2] = "二班";
dt.Rows.Add(dr);
}
return dt;
}
private void DynamicBindRV()
{
//new一个报表类对象
var dynamicReport = new DynamicReport { ReportType = ReportType.Tables };
//设置报表为本地报表
dynamicReport.SetReport(this.ReportViewer1);
//设置列宽度和对齐方式（可选）
dynamicReport.SetColoumStyle(new List<ReportColoumStyle>()
{
new ReportColoumStyle(){ColoumName = "专业名称", ColoumWidth = 4F},
new ReportColoumStyle() {ColoumName = "学院", ColoumWidth = 3.5F},
new ReportColoumStyle(){ColoumName = "就业去向", ColoumWidth = 10F},
});
//增加标题
dynamicReport.AddText("測试");
//增加数据
dynamicReport.AddData(CreateData());
//设置导出报表的名称
ReportViewer1.LocalReport.DisplayName = "測试";
//处理报表数据并显示
dynamicReport.ShowReport();
}