DataSet导出到Excel比较完整的解决方案(一)--客户端生成文件(downmoon)

 

有一客户需求：

1、要从SQL Server数据库导出并生成Excel ;

2、用户下载对应的Excel并填写上传再导入到SQL server。

费了将近六个小时，故一定要把过程写下来，希望看到此文的朋友少走些不必要的弯路。

首先，想到的是直接导出到客户端，代码如下：

 

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1. public static void DataSetToExcel(DataSet oDS, HttpResponse Response, string fileName)   
2.         {   
3.             if (oDS == null || oDS.Tables[0] == null || oDS.Tables[0].Rows.Count == 0) { return; }   
4.             Response.Clear();   
5.             //Encoding pageEncode = Encoding.GetEncoding(PageEncode);   
6.             HttpContext.Current.Response.Charset = "gb2312";   
7.             //Response.ContentType = "application/vnd-excel";//"application/vnd.ms-excel";   
8.             //Response.ContentType = "application/x-octet-stream";//"application/vnd.ms-excel";   
9.             Response.ContentType = "text/csv";//"application/vnd.ms-excel";   
10.             Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName + ".cvs");   
11.             System.IO.StringWriter oSW = new System.IO.StringWriter();   
12.             HtmlTextWriter oHW = new HtmlTextWriter(oSW);   
13.             DataGrid dg = new DataGrid();   
14.             dg.DataSource = oDS.Tables[0];   
15.             dg.DataBind();   
16.             dg.RenderControl(oHW);   
17.             Response.Write(oSW.ToString());   
18.             Response.Flush();   
19.             Response.Close();   
20.         }  

public static void DataSetToExcel(DataSet oDS, HttpResponse Response, string fileName) { if (oDS == null || oDS.Tables[0] == null || oDS.Tables[0].Rows.Count == 0) { return; } Response.Clear(); //Encoding pageEncode = Encoding.GetEncoding(PageEncode); HttpContext.Current.Response.Charset = "gb2312"; //Response.ContentType = "application/vnd-excel";//"application/vnd.ms-excel"; //Response.ContentType = "application/x-octet-stream";//"application/vnd.ms-excel"; Response.ContentType = "text/csv";//"application/vnd.ms-excel"; Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName + ".cvs"); System.IO.StringWriter oSW = new System.IO.StringWriter(); HtmlTextWriter oHW = new HtmlTextWriter(oSW); DataGrid dg = new DataGrid(); dg.DataSource = oDS.Tables[0]; dg.DataBind(); dg.RenderControl(oHW); Response.Write(oSW.ToString()); Response.Flush(); Response.Close(); }  

 

这样生成是生成了！ 客户也可以用Excel直接打开并编辑，问题来了！ 上传时出错，仔细看看生成的Excel.xls,

用记事本打开，内容大致如下：

 

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1. <table cellspacing="0" rules="all" border="1" style="border-collapse:collapse;" mce_style="border-collapse:collapse;">   
2.     <tr>   
3.         <td>品名</td><td>最高价格</td><td>最低价格</td><td>平均价格</td><td>计量单位</td><td>备注</td>   
4.     </tr><tr>   
5.         <td>青菜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
6.     </tr><tr>   
7.         <td>南瓜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
8.     </tr><tr>   
9.         <td>瓠子</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
10.     </tr><tr>   
11.         <td>冬春笋</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
12.     </tr><tr>   
13.         <td>雪里蕻</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
14.     </tr><tr>   
15.         <td>樱桃萝卜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
16.     </tr><tr>   
17.         <td>佛手瓜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
18.     </tr><tr>   
19.         <td>白菜鼎</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
20.     </tr><tr>   
21.         <td>蒜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
22.     </tr><tr>   
23.         <td>食用菌</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
24.     </tr><tr>   
25.         <td>黄瓜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td>   
26.     </tr>   
27. </table>   

<table cellspacing="0" rules="all" border="1" style="border-collapse:collapse;" mce_style="border-collapse:collapse;"> <tr> <td>品名</td><td>最高价格</td><td>最低价格</td><td>平均价格</td><td>计量单位</td><td>备注</td> </tr><tr> <td>青菜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>南瓜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>瓠子</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>冬春笋</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>雪里蕻</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>樱桃萝卜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>佛手瓜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>白菜鼎</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>蒜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>食用菌</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr><tr> <td>黄瓜</td><td> </td><td> </td><td> </td><td>元/公斤</td><td> </td> </tr></table>   

 

 

原来，就是纯粹的html格式，披了件Excel的外衣。这样用户传上来的文件当然不是标准的Excel格式了！

于是， 想到直接生成xml格式的Excel文档，方法如下 ：

 

 

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1. /// <summary>   
2.         /// 执行导出   
3.         /// </summary>   
4.         /// <param name="ds">要导出的DataSet</param>   
5.         /// <param name="strExcelFileName">要导出的文件名</param>   
6.         public static void ExportToExcel(DataSet source, string fileName)   
7.         {   
8.             System.IO.StreamWriter excelDoc;   
9.             excelDoc = new System.IO.StreamWriter(fileName);   
10.             const string startExcelXML = "<xml version>/r/n<Workbook " +   
11.                   "xmlns=/"urn:schemas-microsoft-com:office:spreadsheet/"/r/n" +   
12.                   " xmlns:o=/"urn:schemas-microsoft-com:office:office/"/r/n " +   
13.                   "xmlns:x=/"urn:schemas-    microsoft-com:office:" +   
14.                   "excel/"/r/n xmlns:ss=/"urn:schemas-microsoft-com:" +   
15.                   "office:spreadsheet/">/r/n <Styles>/r/n " +   
16.                   "<Style ss:ID=/"Default/" ss:Name=/"Normal/">/r/n " +   
17.                   "<Alignment ss:Vertical=/"Bottom/"/>/r/n <Borders/>" +   
18.                   "/r/n <Font/>/r/n <Interior/>/r/n <NumberFormat/>" +   
19.                   "/r/n <Protection/>/r/n </Style>/r/n " +   
20.                   "<Style ss:ID=/"BoldColumn/">/r/n <Font " +   
21.                   "x:Family=/"Swiss/" ss:Bold=/"1/"/>/r/n </Style>/r/n " +   
22.                   "<Style     ss:ID=/"StringLiteral/">/r/n <NumberFormat" +   
23.                   " ss:Format=/"@/"/>/r/n </Style>/r/n <Style " +   
24.                   "ss:ID=/"Decimal/">/r/n <NumberFormat " +   
25.                   "ss:Format=/"0.0000/"/>/r/n </Style>/r/n " +   
26.                   "<Style ss:ID=/"Integer/">/r/n <NumberFormat " +   
27.                   "ss:Format=/"0/"/>/r/n </Style>/r/n <Style " +   
28.                   "ss:ID=/"DateLiteral/">/r/n <NumberFormat " +   
29.                   "ss:Format=/"mm/dd/yyyy;@/"/>/r/n </Style>/r/n " +   
30.                   "</Styles>/r/n ";   
31.             const string endExcelXML = "</Workbook>";   
32.             int rowCount = 0;   
33.             int sheetCount = 1;   
34.             /**//*  
35.            <xml version>  
36.            <Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"  
37.            xmlns:o="urn:schemas-microsoft-com:office:office"  
38.            xmlns:x="urn:schemas-microsoft-com:office:excel"  
39.            xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet">  
40.            <Styles>  
41.            <Style ss:ID="Default" ss:Name="Normal">  
42.              <Alignment ss:Vertical="Bottom"/>  
43.              <Borders/>  
44.              <Font/>  
45.              <Interior/>  
46.              <NumberFormat/>  
47.              <Protection/>  
48.            </Style>  
49.            <Style ss:ID="BoldColumn">  
50.              <Font x:Family="Swiss" ss:Bold="1"/>  
51.            </Style>  
52.            <Style ss:ID="StringLiteral">  
53.              <NumberFormat ss:Format="@"/>  
54.            </Style>  
55.            <Style ss:ID="Decimal">  
56.              <NumberFormat ss:Format="0.0000"/>  
57.            </Style>  
58.            <Style ss:ID="Integer">  
59.              <NumberFormat ss:Format="0"/>  
60.            </Style>  
61.            <Style ss:ID="DateLiteral">  
62.              <NumberFormat ss:Format="mm/dd/yyyy;@"/>  
63.            </Style>  
64.            </Styles>  
65.            <Worksheet ss:Name="Sheet1">  
66.            </Worksheet>  
67.            </Workbook>  
68.            */  
69.             excelDoc.Write(startExcelXML);   
70.             excelDoc.Write("<Worksheet ss:Name=/"Sheet" + sheetCount + "/">");   
71.             excelDoc.Write("<Table>");   
72.             excelDoc.Write("<Row>");   
73.             for (int x = 0; x < source.Tables[0].Columns.Count; x++)   
74.             {   
75.                 excelDoc.Write("<Cell ss:StyleID=/"BoldColumn/"><Data ss:Type=/"String/">");   
76.                 excelDoc.Write(source.Tables[0].Columns[x].ColumnName);   
77.                 excelDoc.Write("</Data></Cell>");   
78.             }   
79.             excelDoc.Write("</Row>");   
80.             foreach (DataRow x in source.Tables[0].Rows)   
81.             {   
82.                 rowCount++;   
83.                 //if the number of rows is > 64000 create a new page to continue output   
84.                 if (rowCount == 64000)   
85.                 {   
86.                     rowCount = 0;   
87.                     sheetCount++;   
88.                     excelDoc.Write("</Table>");   
89.                     excelDoc.Write(" </Worksheet>");   
90.                     excelDoc.Write("<Worksheet ss:Name=/"Sheet" + sheetCount + "/">");   
91.                     excelDoc.Write("<Table>");   
92.                 }   
93.                 excelDoc.Write("<Row>"); //ID=" + rowCount + "   
94.                 for (int y = 0; y < source.Tables[0].Columns.Count; y++)   
95.                 {   
96.                     System.Type rowType;   
97.                     rowType = x[y].GetType();   
98.                     switch (rowType.ToString())   
99.                     {   
100.                         case "System.String":   
101.                             string XMLstring = x[y].ToString();   
102.                             XMLstring = XMLstring.Trim();   
103.                             XMLstring = XMLstring.Replace("&", "&");   
104.                             XMLstring = XMLstring.Replace(">", ">");   
105.                             XMLstring = XMLstring.Replace("<", "<");   
106.                             excelDoc.Write("<Cell ss:StyleID=/"StringLiteral/">" +   
107.                                            "<Data ss:Type=/"String/">");   
108.                             excelDoc.Write(XMLstring);   
109.                             excelDoc.Write("</Data></Cell>");   
110.                             break;   
111.                         case "System.DateTime":   
112.                             //Excel has a specific Date Format of YYYY-MM-DD followed by     
113.                             //the letter 'T' then hh:mm:sss.lll Example 2005-01-31T24:01:21.000   
114.                             //The Following Code puts the date stored in XMLDate    
115.                             //to the format above   
116.                             DateTime XMLDate = (DateTime)x[y];   
117.                             string XMLDatetoString = ""; //Excel Converted Date   
118.                             XMLDatetoString = XMLDate.Year.ToString() +   
119.                                  "-" +   
120.                                  (XMLDate.Month < 10 ? "0" +   
121.                                  XMLDate.Month.ToString() : XMLDate.Month.ToString()) +   
122.                                  "-" +   
123.                                  (XMLDate.Day < 10 ? "0" +   
124.                                  XMLDate.Day.ToString() : XMLDate.Day.ToString()) +   
125.                                  "T" +   
126.                                  (XMLDate.Hour < 10 ? "0" +   
127.                                  XMLDate.Hour.ToString() : XMLDate.Hour.ToString()) +   
128.                                  ":" +   
129.                                  (XMLDate.Minute < 10 ? "0" +   
130.                                  XMLDate.Minute.ToString() : XMLDate.Minute.ToString()) +   
131.                                  ":" +   
132.                                  (XMLDate.Second < 10 ? "0" +   
133.                                  XMLDate.Second.ToString() : XMLDate.Second.ToString()) +   
134.                                  ".000";   
135.                             excelDoc.Write("<Cell ss:StyleID=/"DateLiteral/">" +   
136.                                          "<Data ss:Type=/"DateTime/">");   
137.                             excelDoc.Write(XMLDatetoString);   
138.                             excelDoc.Write("</Data></Cell>");   
139.                             break;   
140.                         case "System.Boolean":   
141.                             excelDoc.Write("<Cell ss:StyleID=/"StringLiteral/">" +   
142.                                         "<Data ss:Type=/"String/">");   
143.                             excelDoc.Write(x[y].ToString());   
144.                             excelDoc.Write("</Data></Cell>");   
145.                             break;   
146.                         case "System.Int16":   
147.                         case "System.Int32":   
148.                         case "System.Int64":   
149.                         case "System.Byte":   
150.                             excelDoc.Write("<Cell ss:StyleID=/"Integer/">" +   
151.                                     "<Data ss:Type=/"Number/">");   
152.                             excelDoc.Write(x[y].ToString());   
153.                             excelDoc.Write("</Data></Cell>");   
154.                             break;   
155.                         case "System.Decimal":   
156.                         case "System.Double":   
157.                             excelDoc.Write("<Cell ss:StyleID=/"Decimal/">" +   
158.                                   "<Data ss:Type=/"Number/">");   
159.                             excelDoc.Write(x[y].ToString());   
160.                             excelDoc.Write("</Data></Cell>");   
161.                             break;   
162.                         case "System.DBNull":   
163.                             excelDoc.Write("<Cell ss:StyleID=/"StringLiteral/">" +   
164.                                   "<Data ss:Type=/"String/">");   
165.                             excelDoc.Write("");   
166.                             excelDoc.Write("</Data></Cell>");   
167.                             break;   
168.                         default:   
169.                             throw (new Exception(rowType.ToString() + " not handled."));   
170.                     }   
171.                 }   
172.                 excelDoc.Write("</Row>");   
173.             }   
174.             excelDoc.Write("</Table>");   
175.             excelDoc.Write(" </Worksheet>");   
176.             excelDoc.Write(endExcelXML);   
177.             excelDoc.Close();   
178.         }  

/// <summary> /// 执行导出 /// </summary> /// <param name="ds">要导出的DataSet</param> /// <param name="strExcelFileName">要导出的文件名</param> public static void ExportToExcel(DataSet source, string fileName) { System.IO.StreamWriter excelDoc; excelDoc = new System.IO.StreamWriter(fileName); const string startExcelXML = "<xml version>/r/n<Workbook " + "xmlns=/"urn:schemas-microsoft-com:office:spreadsheet/"/r/n" + " xmlns:o=/"urn:schemas-microsoft-com:office:office/"/r/n " + "xmlns:x=/"urn:schemas- microsoft-com:office:" + "excel/"/r/n xmlns:ss=/"urn:schemas-microsoft-com:" + "office:spreadsheet/">/r/n <Styles>/r/n " + "<Style ss:ID=/"Default/" ss:Name=/"Normal/">/r/n " + "<Alignment ss:Vertical=/"Bottom/"/>/r/n <Borders/>" + "/r/n <Font/>/r/n <Interior/>/r/n <NumberFormat/>" + "/r/n <Protection/>/r/n </Style>/r/n " + "<Style ss:ID=/"BoldColumn/">/r/n <Font " + "x:Family=/"Swiss/" ss:Bold=/"1/"/>/r/n </Style>/r/n " + "<Style ss:ID=/"StringLiteral/">/r/n <NumberFormat" + " ss:Format=/"@/"/>/r/n </Style>/r/n <Style " + "ss:ID=/"Decimal/">/r/n <NumberFormat " + "ss:Format=/"0.0000/"/>/r/n </Style>/r/n " + "<Style ss:ID=/"Integer/">/r/n <NumberFormat " + "ss:Format=/"0/"/>/r/n </Style>/r/n <Style " + "ss:ID=/"DateLiteral/">/r/n <NumberFormat " + "ss:Format=/"mm/dd/yyyy;@/"/>/r/n </Style>/r/n " + "</Styles>/r/n "; const string endExcelXML = "</Workbook>"; int rowCount = 0; int sheetCount = 1; /**//* <xml version> <Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"> <Styles> <Style ss:ID="Default" ss:Name="Normal"> <Alignment ss:Vertical="Bottom"/> <Borders/> <Font/> <Interior/> <NumberFormat/> <Protection/> </Style> <Style ss:ID="BoldColumn"> <Font x:Family="Swiss" ss:Bold="1"/> </Style> <Style ss:ID="StringLiteral"> <NumberFormat ss:Format="@"/> </Style> <Style ss:ID="Decimal"> <NumberFormat ss:Format="0.0000"/> </Style> <Style ss:ID="Integer"> <NumberFormat ss:Format="0"/> </Style> <Style ss:ID="DateLiteral"> <NumberFormat ss:Format="mm/dd/yyyy;@"/> </Style> </Styles> <Worksheet ss:Name="Sheet1"> </Worksheet> </Workbook> */ excelDoc.Write(startExcelXML); excelDoc.Write("<Worksheet ss:Name=/"Sheet" + sheetCount + "/">"); excelDoc.Write("<Table>"); excelDoc.Write("<Row>"); for (int x = 0; x < source.Tables[0].Columns.Count; x++) { excelDoc.Write("<Cell ss:StyleID=/"BoldColumn/"><Data ss:Type=/"String/">"); excelDoc.Write(source.Tables[0].Columns[x].ColumnName); excelDoc.Write("</Data></Cell>"); } excelDoc.Write("</Row>"); foreach (DataRow x in source.Tables[0].Rows) { rowCount++; //if the number of rows is > 64000 create a new page to continue output if (rowCount == 64000) { rowCount = 0; sheetCount++; excelDoc.Write("</Table>"); excelDoc.Write(" </Worksheet>"); excelDoc.Write("<Worksheet ss:Name=/"Sheet" + sheetCount + "/">"); excelDoc.Write("<Table>"); } excelDoc.Write("<Row>"); //ID=" + rowCount + " for (int y = 0; y < source.Tables[0].Columns.Count; y++) { System.Type rowType; rowType = x[y].GetType(); switch (rowType.ToString()) { case "System.String": string XMLstring = x[y].ToString(); XMLstring = XMLstring.Trim(); XMLstring = XMLstring.Replace("&", "&"); XMLstring = XMLstring.Replace(">", ">"); XMLstring = XMLstring.Replace("<", "<"); excelDoc.Write("<Cell ss:StyleID=/"StringLiteral/">" + "<Data ss:Type=/"String/">"); excelDoc.Write(XMLstring); excelDoc.Write("</Data></Cell>"); break; case "System.DateTime": //Excel has a specific Date Format of YYYY-MM-DD followed by //the letter 'T' then hh:mm:sss.lll Example 2005-01-31T24:01:21.000 //The Following Code puts the date stored in XMLDate //to the format above DateTime XMLDate = (DateTime)x[y]; string XMLDatetoString = ""; //Excel Converted Date XMLDatetoString = XMLDate.Year.ToString() + "-" + (XMLDate.Month < 10 ? "0" + XMLDate.Month.ToString() : XMLDate.Month.ToString()) + "-" + (XMLDate.Day < 10 ? "0" + XMLDate.Day.ToString() : XMLDate.Day.ToString()) + "T" + (XMLDate.Hour < 10 ? "0" + XMLDate.Hour.ToString() : XMLDate.Hour.ToString()) + ":" + (XMLDate.Minute < 10 ? "0" + XMLDate.Minute.ToString() : XMLDate.Minute.ToString()) + ":" + (XMLDate.Second < 10 ? "0" + XMLDate.Second.ToString() : XMLDate.Second.ToString()) + ".000"; excelDoc.Write("<Cell ss:StyleID=/"DateLiteral/">" + "<Data ss:Type=/"DateTime/">"); excelDoc.Write(XMLDatetoString); excelDoc.Write("</Data></Cell>"); break; case "System.Boolean": excelDoc.Write("<Cell ss:StyleID=/"StringLiteral/">" + "<Data ss:Type=/"String/">"); excelDoc.Write(x[y].ToString()); excelDoc.Write("</Data></Cell>"); break; case "System.Int16": case "System.Int32": case "System.Int64": case "System.Byte": excelDoc.Write("<Cell ss:StyleID=/"Integer/">" + "<Data ss:Type=/"Number/">"); excelDoc.Write(x[y].ToString()); excelDoc.Write("</Data></Cell>"); break; case "System.Decimal": case "System.Double": excelDoc.Write("<Cell ss:StyleID=/"Decimal/">" + "<Data ss:Type=/"Number/">"); excelDoc.Write(x[y].ToString()); excelDoc.Write("</Data></Cell>"); break; case "System.DBNull": excelDoc.Write("<Cell ss:StyleID=/"StringLiteral/">" + "<Data ss:Type=/"String/">"); excelDoc.Write(""); excelDoc.Write("</Data></Cell>"); break; default: throw (new Exception(rowType.ToString() + " not handled.")); } } excelDoc.Write("</Row>"); } excelDoc.Write("</Table>"); excelDoc.Write(" </Worksheet>"); excelDoc.Write(endExcelXML); excelDoc.Close(); }

 

 

可惜， 生成的倒是XML格式了，但还是上传格式不正确，考虑到客户端可能是Excel2007/2003-97等等，决定放弃保存Excel到客户端的方式。

 第三种尝试方案：用cvs保存，将第一种方法改为：

 

 

1. Response.ContentType = "text/csv";//"application/vnd.ms-excel";   
2.            Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName + ".cvs");  

Response.ContentType = "text/csv";//"application/vnd.ms-excel"; Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName + ".cvs");

生成格式大致如下：

 

 

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1. "品名","最高价格","最低价格","平均价格","计量单位","备注"   
2. "青菜","","","","元/公斤",""   
3. "南瓜","","","","元/公斤",""   
4. "瓠子","","","","元/公斤",""   
5. "冬春笋","","","","元/公斤",""   
6. "雪里蕻","","","","元/公斤",""   
7. "樱桃萝卜","","","","元/公斤",""   
8. "佛手瓜","","","","元/公斤",""   
9. "白菜鼎","","","","元/公斤",""   
10. "蒜","","","","元/公斤",""   
11. "食用菌","","","","元/公斤",""   
12. "黄瓜","","","","元/公斤",""  

"品名","最高价格","最低价格","平均价格","计量单位","备注""青菜","","","","元/公斤","""南瓜","","","","元/公斤","""瓠子","","","","元/公斤","""冬春笋","","","","元/公斤","""雪里蕻","","","","元/公斤","""樱桃萝卜","","","","元/公斤","""佛手瓜","","","","元/公斤","""白菜鼎","","","","元/公斤","""蒜","","","","元/公斤","""食用菌","","","","元/公斤","""黄瓜","","","","元/公斤",""

 

 

导入到SQL Server时有多种方法：

给出简要代码：

 

 

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1. public static DataTable GetDataFromCSV(string filePath,int beginColumn)   
2.         {   
3.             int intColCount = 0;   
4.             bool blnFlag = true;   
5.             DataTable mydt = new DataTable("myTableName");   
6.             DataColumn mydc;   
7.             DataRow mydr;   
8.               
9.             string strline;   
10.             string[] aryline;   
11.             System.IO.StreamReader mysr = new System.IO.StreamReader(filePath,System.Text.Encoding.UTF8);   
12.             int FlagFirst =1;   
13.             while ((strline = mysr.ReadLine()) != null)   
14.             {   
15.                 //if (beginColumn == FlagFirst) { FlagFirst++; continue; }   
16.                 strline = strline.Replace("/n", "");   
17.                 strline = strline.Replace("/r", "");   
18.                 strline = strline.Replace("/t", "");   
19.                 //aryline = strline.Split(new char[] { '|' });   
20.                 aryline = strline.Split(new char[] { ',' });   
21.                 if (blnFlag)   
22.                 {   
23.                     blnFlag = false;   
24.                     intColCount = aryline.Length;   
25.                     for (int i = 0; i < aryline.Length; i++)   
26.                     {   
27.                         mydc = new DataColumn(aryline[i]);   
28.                         mydt.Columns.Add(mydc);   
29.                     }   
30.                 }   
31.                 mydr = mydt.NewRow();   
32.                 for (int i = 0; i < intColCount; i++)   
33.                 {   
34.                     mydr[i] = aryline[i];   
35.                 }   
36.                 mydt.Rows.Add(mydr);   
37.                 FlagFirst++;   
38.             }   
39.     
40.             mysr.Close();   
41.             mysr.Dispose();   
42.             return mydt;   
43.         }  

public static DataTable GetDataFromCSV(string filePath,int beginColumn) { int intColCount = 0; bool blnFlag = true; DataTable mydt = new DataTable("myTableName"); DataColumn mydc; DataRow mydr; string strline; string[] aryline; System.IO.StreamReader mysr = new System.IO.StreamReader(filePath,System.Text.Encoding.UTF8); int FlagFirst =1; while ((strline = mysr.ReadLine()) != null) { //if (beginColumn == FlagFirst) { FlagFirst++; continue; } strline = strline.Replace("/n", ""); strline = strline.Replace("/r", ""); strline = strline.Replace("/t", ""); //aryline = strline.Split(new char[] { '|' }); aryline = strline.Split(new char[] { ',' }); if (blnFlag) { blnFlag = false; intColCount = aryline.Length; for (int i = 0; i < aryline.Length; i++) { mydc = new DataColumn(aryline[i]); mydt.Columns.Add(mydc); } } mydr = mydt.NewRow(); for (int i = 0; i < intColCount; i++) { mydr[i] = aryline[i]; } mydt.Rows.Add(mydr); FlagFirst++; } mysr.Close(); mysr.Dispose(); return mydt; } 

 

 

也有人给出方案，直接从cvs中读取

 

 

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1. public static string PreFilePath=@"c:/Excel/";   
2.        public static string strconn = @"Driver={Microsoft Text Driver (*.txt; *.csv)};Dbq="+PreFilePath+";Extensions=asc,csv,tab,txt;";   
3.        public static DataSet GetDataSetFromCSV( string filename)   
4.        {   
5.            OdbcConnection objconn = new OdbcConnection(strconn);   
6.            DataSet dscsv = new DataSet();   
7.            try  
8.            {   
9.                string strsql = "select * from " + filename;                     //filename, for example: 1.csv   
10.                OdbcDataAdapter odbccsvdataadapter = new OdbcDataAdapter(strsql, objconn);   
11.                odbccsvdataadapter.Fill(dscsv);   
12.                return dscsv;   
13.            }   
14.            catch (Exception ex)   
15.            {   
16.                throw ex;   
17.            }   
18.        }  

public static string PreFilePath=@"c:/Excel/"; public static string strconn = @"Driver={Microsoft Text Driver (*.txt; *.csv)};Dbq="+PreFilePath+";Extensions=asc,csv,tab,txt;"; public static DataSet GetDataSetFromCSV( string filename) { OdbcConnection objconn = new OdbcConnection(strconn); DataSet dscsv = new DataSet(); try { string strsql = "select * from " + filename; //filename, for example: 1.csv OdbcDataAdapter odbccsvdataadapter = new OdbcDataAdapter(strsql, objconn); odbccsvdataadapter.Fill(dscsv); return dscsv; } catch (Exception ex) { throw ex; } }

 

 

尝试失败！！

 Code Project 上有篇文章，

A Fast CSV Reader

也可以试试。

 虽然也可以凑合用， 但总觉得CVS出错的可能性更大。

 到此，决定放弃客户端生成的方式,请看下篇

DataSet导出到Excel比较完整的解决方案(二)--服务器端生成文件(downmoon)