484 lines
17 KiB
C#
484 lines
17 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Text;
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using System.IO;
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using System.Xml.Linq;
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using DocumentFormat.OpenXml.Spreadsheet;
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using DocumentFormat.OpenXml;
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using System.Text.RegularExpressions;
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using System.Data;
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namespace IronIntel.Contractor
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{
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internal class ChartFormatedData : IOpenXmlExcelStyleAndData
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{
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public ChartFormatedData()
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{
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FormatType = CellFormatType.CSharp;
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}
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#region IOpenXmlExcelStyleAndData Members
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public CellAlignment CAlignment { get; set; }
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public CellBorder CBorder { get; set; }
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public CellFill CFill { get; set; }
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public CellFont CFont { get; set; }
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public CellDataType DataType { get; set; }
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public string FormatCode { get; set; }
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public CellFormatType FormatType { get; set; }
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public object Value { get; set; }
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public String MergedCellsPosition { get; set; }
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#endregion
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}
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public class ExportToExcel
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{
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/// <summary>
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/// 将DataTable的数据导出到Excel
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/// </summary>
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/// <returns></returns>
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public byte[] CreateExcel(DataTable data, string caption, double[] columnWidths, string[] MergeTitles)
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{
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COpenXmlExcelSheet osheet = ConvertToOpenXmlObject(data, caption, columnWidths, MergeTitles);
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MemoryStream ms = null;
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try
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{
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ms = new MemoryStream();
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ExcelXlsx xls = new ExcelXlsx();
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xls.CreatePackage(ms, osheet);
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ms.Position = 0;
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byte[] bts = new byte[ms.Length];
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int offset = 0;
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while (offset < bts.Length)
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{
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offset += ms.Read(bts, offset, bts.Length - offset);
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}
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return bts;
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}
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catch { }
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finally
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{
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if (ms != null)
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ms.Close();
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}
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return null;
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}
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private object ConvertIvalidChars(object s)
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{
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if (s == null) return null;
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if (s.GetType() != typeof(string)) return s;
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const string invalidCharsMatch =
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"(?ims)[\x0\x1\x2\x3\x4\x5\x6\x7\x8\x9\xa\xb\xc\xd\xe\xf" +
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"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x7f]";
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//取代其中無效字元, 通通換成空字串
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s = Regex.Replace(
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s.ToString(),
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invalidCharsMatch, "");
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return s;
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}
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private COpenXmlExcelSheet ConvertToOpenXmlObject(DataTable data, string caption, double[] columnWidths, string[] MergeTitles)
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{
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try
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{
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COpenXmlExcelSheet osheet = new COpenXmlExcelSheet();
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// 设置数据和格式。
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//所有数据和格式存放在此结构中。
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List<List<IOpenXmlExcelStyleAndData>> dataMatrix = new List<List<IOpenXmlExcelStyleAndData>>();
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osheet.DataMatrix = dataMatrix;
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//行数据临时对象。
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List<IOpenXmlExcelStyleAndData> rowData = null;
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//单元格数据临时对象。
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ChartFormatedData cellData = null;
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DataRow rdr = null;
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DataColumn rdc = null;
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#region 设置宽度。
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foreach (var w in columnWidths)
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{
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osheet.WidthList.Add(w);
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}
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//for (int k = 0; k < dataFromClient.Columns.Count; k++)
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//{
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// try
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// {
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// rdc = dataFromClient.Columns[k];
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// if (rdc.Attributes == null || !rdc.Attributes.ContainsKey("Width"))
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// {
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// osheet.WidthList.Add(100);
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// }
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// else
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// {
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// osheet.WidthList.Add(Convert.ToDouble(rdc.Attributes["Width"]));
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// }
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// }
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// catch
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// {
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// }
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//}
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#endregion
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int rowIndex = 0;
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#region caption
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if (!string.IsNullOrEmpty(caption))
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{
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rowData = new List<IOpenXmlExcelStyleAndData>();
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cellData = new ChartFormatedData();
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cellData.CAlignment = new CellAlignment();
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cellData.CAlignment.Align = GetAlignment("center");
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cellData.DataType = CellDataType.String;
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cellData.FormatCode = "";
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cellData.CFont = new CellFont();
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cellData.CFont.FontSize = 14;
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cellData.Value = caption;
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cellData.MergedCellsPosition = "A1:" + ConvertColNumber(data.Columns.Count) + "1";
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rowData.Add(cellData);
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rowIndex += 1;
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dataMatrix.Add(rowData);
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//设置第一行的高度。
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osheet.RowHeightList.Add(rowIndex, 23);
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//添加一个空行。
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rowData = new List<IOpenXmlExcelStyleAndData>();
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cellData = new ChartFormatedData();
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cellData.MergedCellsPosition = "A2:" + ConvertColNumber(data.Columns.Count) + "2";
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rowData.Add(cellData);
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rowIndex += 1;
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dataMatrix.Add(rowData);
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}
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#endregion
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#region MergeTitles
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if (MergeTitles != null && MergeTitles.Length % 2 == 0)
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{
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rowData = new List<IOpenXmlExcelStyleAndData>();
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for (int q = 0; q < data.Columns.Count; q++)
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{
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cellData = new ChartFormatedData();
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cellData.CAlignment = new CellAlignment();
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cellData.CAlignment.Align = GetAlignment("center");
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cellData.DataType = CellDataType.String;
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cellData.FormatCode = "";
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cellData.CFont = new CellFont();
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cellData.CFont.FontSize = 14;
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rowData.Add(cellData);
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}
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for (int i = 0; i < MergeTitles.Length; i += 2)
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{
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string[] tmp = MergeTitles[i + 1].Split('-');
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if (tmp.Length == 1) continue;
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cellData = (ChartFormatedData)rowData[(Convert.ToInt32(tmp[0]) - 1)];
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cellData.Value = MergeTitles[i];
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cellData.MergedCellsPosition = ConvertColNumber(Convert.ToInt32(tmp[0])) + "3:" + ConvertColNumber(Convert.ToInt32(tmp[1])) + "3";
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}
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rowIndex += 1;
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dataMatrix.Add(rowData);
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//设置第一行的高度。
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osheet.RowHeightList.Add(rowIndex, 15);
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}
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#endregion
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#region header。
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rowData = new List<IOpenXmlExcelStyleAndData>();
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for (int q = 0; q < data.Columns.Count; q++)
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{
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rdc = data.Columns[q];
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cellData = new ChartFormatedData();
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string alignment = "";
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if (rdc != null)
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{
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//if (rdc.Attributes != null && rdc.Attributes.ContainsKey("Alignment"))
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//{
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// alignment = rdc.Attributes["Alignment"];
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//}
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cellData.CAlignment = new CellAlignment();
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cellData.CAlignment.Align = GetAlignment(alignment);
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cellData.CFont = new CellFont();
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cellData.CFont.IsBold = true;
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cellData.CFill = new CellFill();
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cellData.CFill.FillColor = System.Drawing.Color.Gray;
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cellData.DataType = CellDataType.String;
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cellData.FormatCode = "";
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}
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cellData.Value = rdc.ColumnName;
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rowData.Add(cellData);
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}
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rowIndex += 1;
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osheet.RowHeightList.Add(rowIndex, 18);
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dataMatrix.Add(rowData);
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#endregion
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#region real data 。
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for (int k = 0; k <= data.Rows.Count - 1; k++)
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{
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rdr = data.Rows[k];
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rowData = new List<IOpenXmlExcelStyleAndData>();
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for (int q = 0; q < data.Columns.Count; q++)
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{
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rdc = data.Columns[q];
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string format = "";
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//if (rdc != null)
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//{
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//if (rdc.Attributes != null && rdc.Attributes.ContainsKey("DataFormat"))
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//{
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// format = (rdc.Attributes["DataFormat"] == null
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// ? ""
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// : rdc.Attributes["DataFormat"].ToString());
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//}
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//}
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cellData = new ChartFormatedData();
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//将特殊格式值处理成字符串显示。
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if (rdr != null)
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{
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bool isProcessed = false;
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cellData.Value =
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ConvertIvalidChars(
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ProcessSpecialFormat(rdr[q], format, ref isProcessed));
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if (isProcessed) format = "";
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}
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cellData.FormatCode = ProcessFormat(format);
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cellData.DataType =
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GetDataType((cellData.Value == null ? typeof(string) : cellData.Value.GetType()));
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string alignment = "";
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if (rdc != null)
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{
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//if (rdc.Attributes != null && rdc.Attributes.ContainsKey("Alignment"))
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//{
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// alignment = rdc.Attributes["Alignment"];
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//}
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cellData.CAlignment = new CellAlignment();
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cellData.CAlignment.Align = GetAlignment(alignment);
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}
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//如果是合计行则以浅灰色显示。
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//if (hasTotalRow && k == dataFromClient.Rows.Count - 1)
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//{
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// cellData.CFill = new CellFill();
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// cellData.CFill.FillColor = System.Drawing.Color.LightGray;
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//}
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//如果是合计列则以浅灰色显示。
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//if (hasTotalColumn && q == dataFromClient.Columns.Count - 1)
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//{
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// cellData.CFill = new CellFill();
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// cellData.CFill.FillColor = System.Drawing.Color.LightGray;
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//}
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rowData.Add(cellData);
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}
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//rowIndex += 1;
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//if (hasTotalRow && k == dataFromClient.Rows.Count - 1)
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//{
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// osheet.RowHeightList.Add(rowIndex, totalRowHeight);
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//}
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//else
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//{
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// osheet.RowHeightList.Add(rowIndex, 18);
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//}
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dataMatrix.Add(rowData);
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}
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#endregion
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return osheet;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}
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private string ConvertColNumber(int colnum)
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{
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string zzz = "Z+";
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Regex reg = new Regex(zzz);
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string result = "";
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MatchCollection mc = null;
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for (int k = 0; k < colnum; k++)
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{
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mc = reg.Matches(result);
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if (mc.Count > 0)
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{
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//是zzz格式。
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string first = result.Substring(0, mc[0].Index);
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if (string.IsNullOrEmpty(first))
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{
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result = result.Replace("Z", "A") + "A";
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}
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else
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{
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char c = first[first.Length - 1];
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c = Convert.ToChar(c + 1);
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result = c.ToString() + result.Substring(mc[0].Index).Replace("Z", "A");
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}
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}
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else
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{
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if (string.IsNullOrEmpty(result))
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{
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result = "A";
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}
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else
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{
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char c = result[result.Length - 1];
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c = Convert.ToChar(c + 1);
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result = result.Substring(0, result.Length - 1) + c.ToString();
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}
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}
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}
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return result;
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}
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private Alignment GetAlignment(string align)
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{
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Alignment horizon = new Alignment() { Horizontal = HorizontalAlignmentValues.Left, WrapText = true };
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if (string.Equals(align, "center", StringComparison.OrdinalIgnoreCase))
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{
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horizon = new Alignment() { Horizontal = HorizontalAlignmentValues.Center, WrapText = true };
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}
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else if (string.Equals(align, "right", StringComparison.OrdinalIgnoreCase))
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{
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horizon = new Alignment() { Horizontal = HorizontalAlignmentValues.Right, WrapText = true };
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}
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return horizon;
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}
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private CellDataType GetDataType(Type typ)
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{
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CellDataType result = CellDataType.String;
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switch (Type.GetTypeCode(typ))
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{
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case TypeCode.Int16:
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case TypeCode.Int32:
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case TypeCode.Int64:
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case TypeCode.UInt16:
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case TypeCode.UInt32:
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case TypeCode.UInt64:
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result = CellDataType.Integer;
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break;
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case TypeCode.Decimal:
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case TypeCode.Double:
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case TypeCode.Single:
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result = CellDataType.Float;
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break;
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case TypeCode.DateTime:
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result = CellDataType.Date;
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break;
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case TypeCode.Boolean:
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result = CellDataType.Bool;
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break;
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default:
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break;
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}
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return result;
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}
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private object ProcessSpecialFormat(object val, string format, ref bool isProcessed)
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{
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object result = val;
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isProcessed = false;
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if (val == null || string.IsNullOrEmpty(format.Trim())) return result;
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CellDataType typ = GetDataType(result.GetType());
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//第一个特殊格式：如果值是6位字符串，格式是"MMM-yyyy"，则按日期处理。
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if (typ == CellDataType.String && string.Equals(format.Replace(" ", ""), "{0:MMM-yyyy}"))
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{
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string str = result.ToString();
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if (str.Length == 6)
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{
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try
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{
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result = new DateTime(Convert.ToInt32(str.Substring(0, 4)), Convert.ToInt32(str.Substring(4)), 1);
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result = string.Format(format, result);
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isProcessed = true;
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}
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catch { }
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}
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}
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return result;
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}
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/// <summary>
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/// 处理Format格式，使一些特殊符号（如：*、@）可以直接在Excel中看到，而不是解释成Excel中对这些符号的定义
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/// </summary>
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/// <param name="format">格式字符串</param>
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/// <returns></returns>
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private string ProcessFormat(string format)
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{
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string resultFormat = format;
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if (string.IsNullOrEmpty(resultFormat)) return resultFormat;
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if (format.IndexOf("*") >= 0)
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{
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resultFormat = resultFormat.Replace("*", "\"*\"");
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}
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if (format.IndexOf("@") >= 0)
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{
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resultFormat = resultFormat.Replace("@", "\"@\"");
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}
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return resultFormat;
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}
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}
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}
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