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

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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：

[c-sharp] view plain copy print ?

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：

[css] view plain copy print ?

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 ：

 

 

[c-sharp] view plain copy print ?

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：

 

[c-sharp] view plain copy print ?

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：

[xhtml] view plain copy print ?

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：

 

[c-sharp] view plain copy print ?

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

 

[c-sharp] view plain copy print ?

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)

           

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