C# 将Excel转换为txt并格式化输出WPF

我有一个WPF应用程序，目前有两个按钮，一个用于选择文件，另一个用于将所选文件转换为.txt格式。现在我需要让另一个按钮读取excel文件并格式化数据，然后生成一个.txt文件

我的代码如下所示：

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApplication1
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : System.Windows.Window
{
    public MainWindow()
    {
        InitializeComponent();
    }

    private void BtnFileOpen_Click(object sender, RoutedEventArgs e)
    {
        var fileDialog = new System.Windows.Forms.OpenFileDialog();
        var result = fileDialog.ShowDialog();
        switch (result)
        {
            case System.Windows.Forms.DialogResult.OK:
                var excelFilePath = fileDialog.FileName;
                TxtFile.Text = excelFilePath;
                TxtFile.ToolTip = excelFilePath;
                break;
            case System.Windows.Forms.DialogResult.Cancel:
            default:
                TxtFile.Text = null;
                TxtFile.ToolTip = null;
                break;
        }

    }

    private void convert_Click(object sender, RoutedEventArgs e)
    {
         exportExcelToTxt;
    }
    static void exportExcelToTxt(string excelFilePath, string outputTxtPath)
    {
        Dictionary<string, List<long>> values = new Dictionary<string, List<long>>();
        using (OleDbConnection excelConnection = new OleDbConnection(string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=Excel 8.0;HDR=YES", excelFilePath)))
        {
            excelConnection.Open();
            string firstSheet = getFirstSheetName(excelConnection);
            using (OleDbCommand cmd = excelConnection.CreateCommand())
            {
                cmd.CommandText = string.Format("SELECT * FROM [{0}]", firstSheet);
                using (OleDbDataAdapter da = new OleDbDataAdapter(cmd))
                {
                    using (DataTable dt = new DataTable())
                    {
                        da.Fill(dt); // Getting all the data in the sheet
                        foreach (DataRow item in dt.Rows)
                        {
                            List<long> toAdd = new List<long>();
                            string key = item[0] as string;
                            for (int i = 1; i < dt.Columns.Count; i++)
                            {
                                toAdd.Add(Convert.ToInt64(item[i]));
                            }
                            values.Add(key, toAdd); // Associating all the "numbers" to the "Name"
                        }
                    }
                }
            }
        }
        StringBuilder toWriteToTxt = new StringBuilder();
        foreach (KeyValuePair<string, List<long>> item in values)
        {
            // Formatting the output
            toWriteToTxt.Append(string.Format("{0}:", item.Key));
            foreach (long val in item.Value.Distinct())
            {
                toWriteToTxt.AppendFormat("\t{0} * {1}\r\n", item.Value.Where(f => f == val).Count(),  // Amount of occurrencies of each number
                    val);
            }
        }
        // Writing the TXT
        using (FileStream fs = new FileStream(outputTxtPath, FileMode.Create))
        {
            using (StreamWriter sw = new StreamWriter(fs))
            {
                sw.Write(toWriteToTxt.ToString());
            }
        }
    }


    static string getFirstSheetName(OleDbConnection excelConnection)
    {
        using (DataTable ExcelTables = excelConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new Object[] { null, null, null, "TABLE" }))
        {
            return ExcelTables.Rows[0]["TABLE_NAME"].ToString();
        }
    }
}
}

|  A  |  B  |  C  |  D  |...
| Name|  1  |  2  |  3  |...
|  X  | 898 | 896 | 898 |...

 X:   4 * 898
      6 * 896

我想要的.txt是这样的：

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApplication1
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : System.Windows.Window
{
    public MainWindow()
    {
        InitializeComponent();
    }

    private void BtnFileOpen_Click(object sender, RoutedEventArgs e)
    {
        var fileDialog = new System.Windows.Forms.OpenFileDialog();
        var result = fileDialog.ShowDialog();
        switch (result)
        {
            case System.Windows.Forms.DialogResult.OK:
                var excelFilePath = fileDialog.FileName;
                TxtFile.Text = excelFilePath;
                TxtFile.ToolTip = excelFilePath;
                break;
            case System.Windows.Forms.DialogResult.Cancel:
            default:
                TxtFile.Text = null;
                TxtFile.ToolTip = null;
                break;
        }

    }

    private void convert_Click(object sender, RoutedEventArgs e)
    {
         exportExcelToTxt;
    }
    static void exportExcelToTxt(string excelFilePath, string outputTxtPath)
    {
        Dictionary<string, List<long>> values = new Dictionary<string, List<long>>();
        using (OleDbConnection excelConnection = new OleDbConnection(string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=Excel 8.0;HDR=YES", excelFilePath)))
        {
            excelConnection.Open();
            string firstSheet = getFirstSheetName(excelConnection);
            using (OleDbCommand cmd = excelConnection.CreateCommand())
            {
                cmd.CommandText = string.Format("SELECT * FROM [{0}]", firstSheet);
                using (OleDbDataAdapter da = new OleDbDataAdapter(cmd))
                {
                    using (DataTable dt = new DataTable())
                    {
                        da.Fill(dt); // Getting all the data in the sheet
                        foreach (DataRow item in dt.Rows)
                        {
                            List<long> toAdd = new List<long>();
                            string key = item[0] as string;
                            for (int i = 1; i < dt.Columns.Count; i++)
                            {
                                toAdd.Add(Convert.ToInt64(item[i]));
                            }
                            values.Add(key, toAdd); // Associating all the "numbers" to the "Name"
                        }
                    }
                }
            }
        }
        StringBuilder toWriteToTxt = new StringBuilder();
        foreach (KeyValuePair<string, List<long>> item in values)
        {
            // Formatting the output
            toWriteToTxt.Append(string.Format("{0}:", item.Key));
            foreach (long val in item.Value.Distinct())
            {
                toWriteToTxt.AppendFormat("\t{0} * {1}\r\n", item.Value.Where(f => f == val).Count(),  // Amount of occurrencies of each number
                    val);
            }
        }
        // Writing the TXT
        using (FileStream fs = new FileStream(outputTxtPath, FileMode.Create))
        {
            using (StreamWriter sw = new StreamWriter(fs))
            {
                sw.Write(toWriteToTxt.ToString());
            }
        }
    }


    static string getFirstSheetName(OleDbConnection excelConnection)
    {
        using (DataTable ExcelTables = excelConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new Object[] { null, null, null, "TABLE" }))
        {
            return ExcelTables.Rows[0]["TABLE_NAME"].ToString();
        }
    }
}
}

|  A  |  B  |  C  |  D  |...
| Name|  1  |  2  |  3  |...
|  X  | 898 | 896 | 898 |...

 X:   4 * 898
      6 * 896

基本上，它采用从A2到An的名称，然后计算从B2到AF2的所有相同实例。最后，我会有一个txt文件，上面列出了所有的名字。我还参考了Microsoft.Office.Interop.Excel，因为我阅读了它，发现它是必需的，但由于我不熟悉Excel相关代码，我不知道我可以从那里使用什么，因为应用程序的用途与我的用途有很大不同

如何使按钮执行上述功能

我添加了Codriopo给出的代码，现在我有了这些库：

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

我还更改了Provider=Microsoft.Jet.OLEDB.4.0；数据源={0}；扩展属性=Excel 8.0；，excelFilePath

to Provider=Microsoft.ACE.OLEDB.12.0；数据源={0}；扩展属性=Excel 8.0；，excelFilePath，但我仍然在此处遇到调试错误：

// Writing the TXT
    using (FileStream fs = new FileStream(outputTxtPath, FileMode.Create))
    {
        using (StreamWriter sw = new StreamWriter(fs))
        {
            sw.Write(toWriteToTxt.ToString());
        }
    }
}

static string getFirstSheetName(OleDbConnection excelConnection)
{
    using (DataTable ExcelTables = excelConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new Object[] { null, null, null, "TABLE" }))
    {
        return ExcelTables.Rows[0]["TABLE_NAME"].ToString();
    }
}

找不到类型或命名空间名称“FileStream”是否缺少using指令或程序集引用

静态字符串getFirstSheetNameOleDbConnection excelConnection字符串有错误：

应为类、委托、枚举、接口或结构

下一行的对象[]也是如此

---

我是否缺少一个库？

我建议您在这种情况下使用Microsoft.Jet.OLEDB如果您想进行比较，请检查，以下是一些您可以使用的代码。我编写此代码时假设您只想导出Excel中的第一张工作表：

    static void exportExcelToTxt(string excelFilePath, string outputTxtPath)
    {
        Dictionary<string, List<long?>> values = new Dictionary<string, List<long?>>();
        using (OleDbConnection excelConnection = new OleDbConnection(string.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=Excel 8.0;", excelFilePath)))
        {
            excelConnection.Open();
            string firstSheet = getFirstSheetName(excelConnection);
            using (OleDbCommand cmd = excelConnection.CreateCommand())
            {
                cmd.CommandText = string.Format("SELECT * FROM [{0}]", firstSheet);
                using (OleDbDataAdapter da = new OleDbDataAdapter(cmd))
                {
                    using (DataTable dt = new DataTable())
                    {
                        da.Fill(dt); // Getting all the data in the sheet
                        foreach (DataRow item in dt.Rows)
                        {
                            List<long?> toAdd = new List<long?>();
                            string key = item[0] as string;
                            for (int i = 1; i < dt.Columns.Count; i++)
                            {
                                toAdd.Add(item[i] != DBNull.Value ? (long?)Convert.ToInt64(item[i]) : null);
                            }
                            values.Add(key, toAdd); // Associating all the "numbers" to the "Name"
                        }
                    }
                }
            }
        }
        StringBuilder toWriteToTxt = new StringBuilder();
        foreach (KeyValuePair<string, List<long?>> item in values)
        {
            // Formatting the output
            toWriteToTxt.Append(string.Format("{0}:", item.Key));
            foreach (long val in item.Value.Where(f => f != null).Distinct())
            {
                toWriteToTxt.AppendFormat("\t{0} * {1}\r\n", item.Value.Where(f => f == val).Count(),  // Amount of occurrencies of each number
                    val);
            }
        }
        // Writing the TXT
        using (FileStream fs = new FileStream(outputTxtPath, FileMode.Create))
        {
            using (StreamWriter sw = new StreamWriter(fs))
            {
                sw.Write(toWriteToTxt.ToString());
            }
        }
    }

    static string getFirstSheetName(OleDbConnection excelConnection)
    {
        using (DataTable ExcelTables = excelConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new Object[] { null, null, null, "TABLE" }))
        {
            return ExcelTables.Rows[0]["TABLE_NAME"].ToString();
        }
    }

---

4*和6*是898和896的出现次数？是的，只是一个例子，它可以显示某些地方的数量，这些数字对应一个人轮班的地方，因此在x餐厅可能是4天，在y餐厅可能是6天。对不起，下面是需要的使用说明：使用系统；使用System.Collections.Generic；使用System.Linq；使用系统文本；使用System.Data.OleDb；使用系统数据；使用System.IO；FileStream的全名是System.IO.FileStream您能发布您试图编译的全部代码吗？我想你可能有一些括号错误。更新了我的代码，添加System.IO解决了调试错误。这看起来应该有效吗？快速阅读OLEDB我得出结论，我可能应该使用Microsoft.ACE.OLEDB.12.0，因为我运行的是64位系统，显然Microsoft.Jet.OLEDB.4.0只适用于32位。