关于C# WinForm FastReport Studio的使用方法:

using System;
using System.Data;
using FastReport;
using Szcx.GeneralDB;
using System.Collections.Generic;

namespace CxFastReport
{
//基类
public abstract class BasePlugin :IfrxUserDataSet, IfrxUserDataSetEvents, IfrxDataSet, IfrxPlugin
{
private int itemIndex;
/// <summary>
/// 报表行索引,包括报表头，尾和数据行
/// </summary>
public int ItemIndex
{
get { return itemIndex; }
set { itemIndex = value; }
}

private int columnCount;
/// <summary>
/// 列数
/// </summary>
public int ColumnCount
{
get { return columnCount; }
set { columnCount = value; }
}

int rowCount = 0;
/// <summary>
/// 数据项总行数
/// </summary>
public int RowCount
{
get { return rowCount; }
set { rowCount = value; }
}

#region IfrxUserDataSet 成员

string fields;
/// <summary>
/// 报表列集合，格式：('column1'/n'column1'/n........)
/// </summary>
public string Fields
{
get { return fields; }
set { fields = value; }
}

string name;
public string Name
{
get { return name; }
set { name = value; }
}

#endregion

#region IfrxUserDataSetEvents 成员

public void OnFirst() { ItemIndex = 0; }
public void OnNext() { ItemIndex++; }
public void OnPrior() { ItemIndex--; }

public void OnCheckEOF(out bool IsEOF)
{
IsEOF = (ItemIndex >= rowCount);
}

/// <summary>
/// 报表时获取数据
/// </summary>
/// <param name="VarName">列名</param>
/// <param name="Value">值</param>
public abstract void OnGetValue(object columanName, out object Value);

#endregion

#region IfrxDataSet 成员

public int CurrentRecordNo { get { return ItemIndex; } }
public void GoFirst() { ItemIndex = 0; }
public void GoNext() { ItemIndex++; }
public void GoPrior() { ItemIndex--; }

public int FieldsCount { get { return ColumnCount; } }
public int RecordsCount { get { return this.rowCount; } }

public int RangeEndCount
{
get
{
// TODO:  Add ReportDataTable.RangeEndCount getter implementation
return 0;
}
set
{
// TODO:  Add ReportDataTable.RangeEndCount setter implementation
}
}

public FastReport.frxRangeBegin RangeBegin
{
get
{
// TODO:  Add ReportDataTable.RangeBegin getter implementation
return new FastReport.frxRangeBegin();
}
set
{
// TODO:  Add ReportDataTable.RangeBegin setter implementation
}
}

public abstract object ValueOfField(string FieldName);

string userName = "";

public string UserName
{
get { return userName; }
set { userName = value; }
}

public FastReport.frxRangeEnd RangeEnd
{
get
{
// TODO:  Add ReportDataTable.RangeEnd getter implementation
return new FastReport.frxRangeEnd();
}
set
{
// TODO:  Add ReportDataTable.RangeEnd setter implementation
}
}

#endregion

#region IfrxPlugin 成员

public FastReport.frxPluginType PluginType
{
get
{
return FastReport.frxPluginType.ptDataSet;
}
}

#endregion
}
}

using System;
using System.Data;
using FastReport;
using Szcx.GeneralDB;
using System.Collections.Generic;
using Szcx.Misc;

namespace CxFastReport
{
//实现Table数据的转换
public class ReportDataTable : BasePlugin
{
private DataTable dataTable;

/// <summary>
/// 构造方法，构建列
/// </summary>
/// <param name="table">数据表</param>
/// <param name="dataSourceName">生成的数据源名称</param>
public ReportDataTable(DataTable table,string dataSourceName)
{
dataTable = table;
FeildMap.Clear();
//初始化
this.Name = dataSourceName;
this.UserName = dataSourceName;
this.RowCount = table.Rows.Count;
this.Fields = null;
this.ColumnCount = table.Columns.Count;
//构建列
foreach (DataColumn col in dataTable.Columns)
{
FeildMap.Add(field.FLD_DESC, field);
this.Fields += field.FLD_DESC + "/n";

}
}

/// <summary>
/// 实现报表时获取数据
/// </summary>
/// <param name="columnName">列名</param>
/// <param name="Value">获取的值</param>
public override void OnGetValue(object columnName, out object Value)
{
//报表时获取值
object value = dataTable.Rows[this.ItemIndex][columnName.ToString()];
//将Decimal数据类型装换为Int32,FastReport不能识别Decimal数据类型
if (Value is Decimal)
{
Value = Decimal.ToInt32((Decimal)Value);
}
}

public override object ValueOfField(string FieldName)
{
throw new Exception("The method or operation is not implemented.");
}
}
}

using System;
using System.Collections.Generic;
using System.Text;
using FastReport;
using System.Data;

namespace CxFastReport
{
//数据绑定类
public class ReportBinding
{
private List<BasePlugin> reportBasePlugins = new List<BasePlugin>();

public void BindToReport(List<BasePlugin> plugins, TfrxReportClass report)
{
reportBasePlugins.Clear();
foreach (BasePlugin plugin in plugins)
{
this.reportBasePlugins.Add(plugin);
report.BindObject(plugin);
report.SelectDataset(true, plugin);
}
}

/// <summary>
/// 卸载数据源
/// </summary>
public void UnbindFromReport(TfrxReportClass report)
{
foreach (BasePlugin local_table in this.reportBasePlugins)
{
report.SelectDataset(false, local_table);
}
reportBasePlugins.Clear();
}
}
}

//继承FastReporet的新类
using System;
using System.Collections.Generic;
using System.Text;
using FastReport;
using System.Data;
using System.Windows.Forms;
using System.Collections;

namespace CxFastReport
{
public class FrxFastReport : TfrxReportClass
{
Form form;
bool secondLang;
public bool SecondLang
{
get { return secondLang; }
set { secondLang = value; }
}

/// <summary>
/// 绑定数据源对象的类
/// </summary>
private ReportBinding reportBinding = null;

/// <summary>
/// 数据源插件对象:分别是由：ReportDataTable,ReportList实现的
/// </summary>
List<BasePlugin> plugins = new List<BasePlugin>();

private IList list = null;

public FrxFastReport(Form form, bool secondLang)
{
this.secondLang = secondLang;
this.reportBinding = new ReportBinding();
this.form = form;
}

Dictionary<string, object> listDataSource = new Dictionary<string, object>();

/// <summary>
/// 数据源和名称,键值对,object为数据源，string数据源名称,
/// 如：ListDataSource.Add(new Dictionary<tableName,dataTable>);
/// </summary>
public Dictionary<string, object> ListDataSource
{
get { return listDataSource; }
set { listDataSource = value; }
}

/// <summary>
/// 绑定数据到报表
/// </summary>
public void BindToReport()
{
IEnumerator ienumeratorKey = ListDataSource.Keys.GetEnumerator();
while (ienumeratorKey.MoveNext())
{
string key = ienumeratorKey.Current.ToString();
object reportDataSource = this.ListDataSource[key];
if (reportDataSource is DataTable)
{
this.plugins.Add(new ReportDataTable((DataTable)reportDataSource, key));
continue;
}
if (reportDataSource is DataView)
{
DataTable tempTable = ((DataView)reportDataSource).Table;
this.plugins.Add(new ReportDataTable(tempTable, key));
continue;
}
if (reportDataSource is IList)
{
this.list = (IList)reportDataSource;
this.plugins.Add(new ReportList(this.list, key));
continue;
}
}
this.reportBinding.BindToReport(this.plugins, this);
}

/// <summary>
/// 卸载数据源
/// </summary>
public void UnbindFromReport()
{
this.reportBinding.UnbindFromReport(this);
}
}
}

//掉用方法
//设置FastReport数据源
Dictionary<string, DataTable> listDataSource = new Dictionary<string, DataTable>();
/// <summary>
/// 数据源和名称,键值对,object为数据源，string数据源名称,
/// 如：ListDataSource.Add(new Dictionary<tableName,dataTable>);
/// </summary>
public Dictionary<string, DataTable> ListDataSource
{
get { return listDataSource; }
set { listDataSource = value; }
}

/// <summary>
/// 绑定数据到报表
/// </summary>
public void BindToReport()
{
IEnumerator ienumeratorKey = ListDataSource.Keys.GetEnumerator();
while (ienumeratorKey.MoveNext())
{
string key = ienumeratorKey.Current.ToString();                DataTable reportDataSource = this.ListDataSource[key];
this.plugins.Add(new ReportDataTable((DataTable)reportDataSource, key));
this.reportBinding.BindToReport(this.plugins, this);
}