C#实现DataTable转TXT、CSV文件

转TXT文件

public object DataTableToTXT(DataTable vContent, string vOutputFilePath)
        {
            object resObj;
            StringBuilder sTxtContent;
            try
            {
                if (File.Exists(vOutputFilePath))
                    File.Delete(vOutputFilePath);
                sTxtContent = new StringBuilder();
                //数据
                foreach (DataRow row in vContent.Rows)
                {
                    for (int i = 0; i < vContent.Columns.Count; i++)
                    {
                        sTxtContent.Append(row[i].ToString().Trim());
                        sTxtContent.Append(i == vContent.Columns.Count - 1 ? "\r\n" : "\t");
                    }
                }
                File.WriteAllText(vOutputFilePath, sTxtContent.ToString(), Encoding.Unicode);
                resObj = new object[] { 0, "OK" };
            }
            catch (Exception ex)
            {
                resObj = new object[] { 0, "OK" };
            }
            return resObj;
        }

转.CSV文件

将DataTable转换成CSV文件是一种常见的转换形式,主要通过遍历Table的每行，再对每行遍历每列，实现对数据的读取，然后用分隔符分隔Table的每个栏位数据，把读取的字符写入到CSV文件中。这里每个栏位之间用逗号分隔，每行用换行符。实现代码如下：

public ExecutionResult DataTableToCsv(System.Data.DataTable vContent, string vOutputFilePath)
        {
            ExecutionResult sResult = new ExecutionResult();
            System.Text.StringBuilder sCsvContent;
            try
            {
                sCsvContent = new System.Text.StringBuilder();
                //栏位
                for (int i = 0; i < vContent.Columns.Count; i++)
                {
                    sCsvContent.Append(vContent.Columns[i].ColumnName);
                    sCsvContent.Append(i == vContent.Columns.Count - 1 ? "\r\n" : ",");
                }
                //数据
                foreach (System.Data.DataRow row in vContent.Rows)
                {
                    for (int i = 0; i < vContent.Columns.Count; i++)
                    {
                        sCsvContent.Append(row[i].ToString().Trim());
                        sCsvContent.Append(i == vContent.Columns.Count - 1 ? "\r\n" : ",");
                    }
                }
                File.WriteAllText(vOutputFilePath, sCsvContent.ToString(), Encoding.UTF8);
                sResult.Status = true;
            }
            catch (Exception ex)
            {
                sResult.Message = ex.Message;
                sResult.Status = false;
            }
            return sResult;
        }

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