x01.ExcelHelper: NPOI 操作

Posted 2020-09-27

Excel 操作，具有十分明显的针对性，故很难通用，但这并不妨碍参考后以解决自己的实际问题。

有一汇总表如下：

    

当然，只是示范，产品的代码应该唯一！现在要根据此汇总表产生各个客户的产品清单。由于客户较多，汇总分表1，表2；客户清单模板根据产品类别，每个清单又分为三个表。做个模板，然后手工复制粘贴，完成需要小半天的时间。还是写个程序来帮帮忙吧。

首先，是下载 NPOI 库及参考手册，花个10来分钟粗略看看，然后开工。主要代码如下：

<Window x:Class="x01.ExcelHelper.SplitWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    WindowStartupLocation="CenterScreen"
    Title="x01.SplitWindow" Height="310" Width="480">
        <Window.Resources>
        <Style TargetType="TextBox" x:Key="ShortBoxKey">
            <Setter Property="MinWidth" Value="20" />
            <Setter Property="Margin" Value="5" />
        </Style>
        <Style TargetType="TextBox">
            <Setter Property="Height" Value="20" />
        </Style>
        <Style TargetType="Button">
            <Setter Property="Margin" Value="5" />
            <Setter Property="Height" Value="20" />
        </Style>
        <Style TargetType="TextBlock">
            <Setter Property="Margin" Value="0 5 0 0" />
            <Setter Property="Height" Value="20" />
        </Style>
    </Window.Resources>
    <Grid Margin="5 10 5 5">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="Auto" />
        </Grid.ColumnDefinitions>
        <TextBlock Grid.Row="0" Grid.Column="0" HorizontalAlignment="Right">原始文件:</TextBlock>
        <TextBox Grid.Row="0" Grid.Column="1" Name="tbxOriginPath" /> 
        <Button Grid.Row="0" Grid.Column="2" Width="30" Name="OpenOriginButton"
            Click="OpenOriginButton_Click">…</Button>
        <StackPanel Grid.Row="1" Grid.ColumnSpan="3">
            <StackPanel Orientation="Horizontal">
                <TextBlock>原始表1: 表名</TextBlock>
                <TextBox Name="tbxOriginSheet1Name" MinWidth="40" Margin="5 0" />
                <TextBlock>起始行</TextBlock>
                <TextBox Name="tbxOriginSheet1StartRow" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束行</TextBlock>
                <TextBox Name="tbxOriginSheet1EndRow" Style="{StaticResource ShortBoxKey}" />    
                <TextBlock>起始列</TextBlock>
                <TextBox Name="tbxOriginSheet1StartCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束列</TextBlock>
                <TextBox Name="tbxOriginSheet1EndCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>代码列</TextBlock>
                <TextBox Name="tbxOriginSheet1CodeCol" Style="{StaticResource ShortBoxKey}" />
            </StackPanel>
        <StackPanel Orientation="Horizontal">
                <TextBlock>原始表2: 表名</TextBlock>
                <TextBox Name="tbxOriginSheet2Name" MinWidth="40" Margin="5 0" />
                <TextBlock>起始行</TextBlock>
                <TextBox Name="tbxOriginSheet2StartRow" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束行</TextBlock>
                <TextBox Name="tbxOriginSheet2EndRow" Style="{StaticResource ShortBoxKey}" />    
                <TextBlock>起始列</TextBlock>
                <TextBox Name="tbxOriginSheet2StartCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束列</TextBlock>
                <TextBox Name="tbxOriginSheet2EndCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>代码列</TextBlock>
                <TextBox Name="tbxOriginSheet2CodeCol" Style="{StaticResource ShortBoxKey}" />
            </StackPanel>
        </StackPanel>
        <TextBlock Grid.Row="2" Grid.Column="0" HorizontalAlignment="Right">模板文件:</TextBlock>
        <TextBox Grid.Row="2" Grid.Column="1" Name="tbxTemplatePath" />
        <Button Grid.Row="2" Grid.Column="2" Width="30" Name="OpenTemplateButton" 
                Click="OpenTemplateButton_Click">…</Button>
        <StackPanel Grid.Row="3" Grid.ColumnSpan="3">
            <StackPanel Orientation="Horizontal">
                <TextBlock>模板表1: 表名</TextBlock>
                <TextBox Name="tbxTemplateSheet1Name" MinWidth="40" Margin="5 0" />
                <TextBlock>起始行</TextBlock>
                <TextBox Name="tbxTemplateSheet1StartRow" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束行</TextBlock>
                <TextBox Name="tbxTemplateSheet1EndRow" Style="{StaticResource ShortBoxKey}" />    
                <TextBlock>起始列</TextBlock>
                <TextBox Name="tbxTemplateSheet1StartCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束列</TextBlock>
                <TextBox Name="tbxTemplateSheet1EndCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>代码列</TextBlock>
                <TextBox Name="tbxTemplateSheet1CodeCol" Style="{StaticResource ShortBoxKey}" />
            </StackPanel>
            <StackPanel Orientation="Horizontal">
                <TextBlock>模板表2: 表名</TextBlock>
                <TextBox Name="tbxTemplateSheet2Name" MinWidth="40" Margin="5 0" />
                <TextBlock>起始行</TextBlock>
                <TextBox Name="tbxTemplateSheet2StartRow" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束行</TextBlock>
                <TextBox Name="tbxTemplateSheet2EndRow" Style="{StaticResource ShortBoxKey}" />    
                <TextBlock>起始列</TextBlock>
                <TextBox Name="tbxTemplateSheet2StartCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束列</TextBlock>
                <TextBox Name="tbxTemplateSheet2EndCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>代码列</TextBlock>
                <TextBox Name="tbxTemplateSheet2CodeCol" Style="{StaticResource ShortBoxKey}" />
            </StackPanel>
            <StackPanel Orientation="Horizontal">
                <TextBlock>模板表3: 表名</TextBlock>
                <TextBox Name="tbxTemplateSheet3Name" MinWidth="40" Margin="5 0" />
                <TextBlock>起始行</TextBlock>
                <TextBox Name="tbxTemplateSheet3StartRow" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束行</TextBlock>
                <TextBox Name="tbxTemplateSheet3EndRow" Style="{StaticResource ShortBoxKey}" />    
                <TextBlock>起始列</TextBlock>
                <TextBox Name="tbxTemplateSheet3StartCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>结束列</TextBlock>
                <TextBox Name="tbxTemplateSheet3EndCol" Style="{StaticResource ShortBoxKey}" />
                <TextBlock>代码列</TextBlock>
                <TextBox Name="tbxTemplateSheet3CodeCol" Style="{StaticResource ShortBoxKey}" />
            </StackPanel>
        </StackPanel>
        <Button Grid.Row="4" Grid.ColumnSpan="3" HorizontalAlignment="Right" 
                Name="GenerateFilesButton" Margin="0 10 5 0" Height="32"
                Click="GenerateFilesButton_Click">_Generate Files</Button>
    </Grid>
</Window>

SplitWindow.xaml

/**
 * SplitWindow.cs (c) 2017 by x01
 */
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;

using Microsoft.Win32;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;

namespace x01.ExcelHelper
{
    /// <summary>
    /// Interaction logic for SplitWindow.xaml
    /// </summary>
    public partial class SplitWindow : Window
    {
        #region Settings
        
        public string OriginPath
        {
            get {
                if (string.IsNullOrEmpty(tbxOriginPath.Text))
                    throw new Exception("请选择原始文件！");
                return tbxOriginPath.Text;
            }
        }
        
        public string OriginSheet1Name
        {
            get {
                return tbxOriginSheet1Name.Text;
            }
        }
        public int OriginSheet1StartRow
        {
            get {
                int row;
                if (!int.TryParse(tbxOriginSheet1StartRow.Text, out row))
                    throw new Exception("请在表1起始行中填充正确的数字！");
                return row;
            }
        }
        public int OriginSheet1EndRow
        {
            get {
                int row;
                if (!int.TryParse(tbxOriginSheet1EndRow.Text, out row))
                    throw new Exception("请在表1结束行中填入正确的数字！");
                return row;
            }
        }
        public int OriginSheet1StartCol
        {
            get {
                int col;
                if (!int.TryParse(tbxOriginSheet1StartCol.Text, out col))
                    throw new Exception("请在表1起始列中填入正确的数字！");
                return col;
            }
        }
        public int OriginSheet1EndCol
        {
            get {
                int col;
                if (!int.TryParse(tbxOriginSheet1EndCol.Text, out col))
                    throw new Exception("请在表1结束列中填入正确的数字！");
                return col;
            }
        }
        public int OriginSheet1CodeCol
        {
            get {
                int col;
                if (!int.TryParse(tbxOriginSheet1CodeCol.Text, out col))
                    throw new Exception("请在表1代码列中填入正确的数字！");
                return col;
            }
        }
        
        public string OriginSheet2Name
        {
            get {
                return tbxOriginSheet2Name.Text;
            }
        }
        public int OriginSheet2StartRow
        {
            get {
                int row;
                if (!int.TryParse(tbxOriginSheet2StartRow.Text, out row))
                    throw new Exception("请在表2起始行中填入正确的数字！");
                return row;
            }
        }
        public int OriginSheet2EndRow
        {
            get {
                int row;
                if (!int.TryParse(tbxOriginSheet2EndRow.Text, out row))
                    throw new Exception("请在表2结束行中填入正确的数字！");
                return row;
            }
        }
        public int OriginSheet2StartCol
        {
            get {
                int col;
                if (!int.TryParse(tbxOriginSheet2StartCol.Text, out col))
                    throw new Exception("请在表2开始列中填入正确的数字！");
                return col;
            }
        }
        public int OriginSheet2EndCol
        {
            get {
                int col;
                if (!int.TryParse(tbxOriginSheet2EndCol.Text, out col))
                    throw new Exception("请在表2结束列中填入正确的数字！");
                return col;
            }
        }
        public int OriginSheet2CodeCol
        {
            get {
                int col;
                if (!int.TryParse(tbxOriginSheet2CodeCol.Text, out col))
                    throw new Exception("请在表2代码列中填入正确的数字！");
                return col;
            }
        }
        
        public string TemplatePath
        {
            get {
                if (string.IsNullOrEmpty(tbxTemplatePath.Text))
                    throw new Exception("请选择模板文件！");
                return tbxTemplatePath.Text;
            }
        }
        
        public string TemplateSheet1Name
        {
            get {
                return tbxTemplateSheet1Name.Text;
            }
        }
        public int TemplateSheet1StartRow
        {
            get {
                int row;
                if (!int.TryParse(tbxTemplateSheet1StartRow.Text, out row))
                    throw new Exception("请在模板表1开始行中填入正确的数字！");
                return row;
            }
        }
        public int TemplateSheet1EndRow
        {
            get {
                int row;
                if (!int.TryParse(tbxTemplateSheet1EndRow.Text, out row))
                    throw new Exception("请在模板表1结束行中填入正确的数字！");
                return row;
            }
        }
        public int TemplateSheet1StartCol
        {
            get {
                int col;
                if (!int.TryParse(tbxTemplateSheet1StartCol.Text, out col))
                    throw new Exception("请在模板表1开始列中填入正确的数字！");
                return col;
            }
        }
        public int TemplateSheet1EndCol
        {
            get {
                int col;
                if (!int.TryParse(tbxTemplateSheet1EndCol.Text, out col))
                    throw new Exception("请在模板表1结束列中填入正确的数字！");
                return col;
            }
        }
        public int TemplateSheet1CodeCol
        {
            get {
                int col;
                if (!int.TryParse(tbxTemplateSheet1CodeCol.Text, out col))
                    throw new Exception("请在模板表1代码列中填入正确的数字！");
                return col;
            }
        }
        
        public string TemplateSheet2Name
        {
            get {
                return tbxTemplateSheet2Name.Text;
            }
        }
        public int TemplateSheet2StartRow
        {
            get {
                int row;
                if (!int.TryParse(tbxTemplateSheet2StartRow.Text, out row))
                    throw new Exception("请在模板表2开始行中填入正确的数字！");
                return row;
            }
        }
        public int TemplateSheet2EndRow
        {
            get {
                int row;
                if (!int.TryParse(tbxTemplateSheet2EndRow.Text, out row))
                    throw new Exception("请在模板表2结束行中填入正确的数字！");
                return row;
            }
        }
        public int TemplateSheet2StartCol
        {
            get {
                int col;
                if (!int.TryParse(tbxTemplateSheet2StartCol.Text, out col))
                    throw new Exception("请在模板表2开始列中填入正确的数字！");
                return col;
            }
        }
        public int TemplateSheet2EndCol
        {
            get {
                int col;
                if (!int.TryParse(tbxTemplateSheet2EndCol.Text, out col))
                    throw new Exception("请在模板表2结束列中填入正确的数字！");
                return col;
            }
        }
        public int TemplateSheet2CodeCol
        {
            get {
                int col;
                if (!int.TryParse(tbxTemplateSheet2CodeCol.Text, out col))
                    throw new Exception("请在模板表2代码列中填入正确的数字！");
                return col;
            }
        }
        
        public string TemplateSheet3Name
        {
            get {
                return tbxTemplateSheet3Name.Text;
            }
        }
        public int TemplateSheet3StartRow
        {
            get {
                int row;
                if (!int.TryParse(tbxTemplateSheet3StartRow.Text, out row))
                    throw new Exception("请在模板表3开始行中填入正确的数字！");
                return row;
            }
        }
        public int TemplateSheet3EndRow
        {
            get {
                int row;
                if (!int.TryParse(tbxTemplateSheet3EndRow.Text, out row))
                    throw new Exception("请在模板表3结束行中填入正确的数字！");
                return row;
            }
        }
        public int TemplateSheet3StartCol
        {
            get {
                int col;
                if (!int.TryParse(tbxTemplateSheet3StartCol.Text, out col))
                    throw new Exception("请在模板表3开始列中填入正确的数字！");
                return col;
            }
        }
        public int TemplateSheet3EndCol
        {
            get {
                int col;
                if (!int.TryParse(tbxTemplateSheet3EndCol.Text, out col))
                    throw new Exception("请在模板表3结束列中填入正确的数字！");
                return col;
            }
        }
        public int TemplateSheet3CodeCol
        {
            get {
                int col;
                if (!int.TryParse(tbxTemplateSheet3CodeCol.Text, out col))
                    throw new Exception("请在模板表3代码列中填入正确的数字！");
                return col;
            }
        }
        
        #endregion
        
        OpenFileDialog openDialog = new OpenFileDialog();
        SaveFileDialog saveDialog = new SaveFileDialog();
        public SplitWindow()
        {
            InitializeComponent();
            
            openDialog.Filter = "Excel Files(*.xls)|*.xls|All Files(*.*)|*.*";
            saveDialog.Filter = "Excel Files(*.xls)|*.xls|All Files(*.*)|*.*";
        }
        
        void OpenTemplateButton_Click(object sender, RoutedEventArgs e)
        {
            if ((bool)openDialog.ShowDialog()) {
                tbxTemplatePath.Text = openDialog.FileName;
            }
        }
        
        void OpenOriginButton_Click(object sender, RoutedEventArgs e)
        {
            if ((bool)openDialog.ShowDialog()) {
                tbxOriginPath.Text = openDialog.FileName;
            }
        }
        
        void GenerateFilesButton_Click(object sender, RoutedEventArgs e)
        {
            var orgBook = CreateWorkook(OriginPath);
            var orgSheet1 = GetSheet(orgBook,OriginSheet1Name);
            var orgSheet2 = GetSheet(orgBook,OriginSheet2Name);
            
            var tempBook = CreateWorkook(TemplatePath);
            var tempSheet1 = GetSheet(tempBook,TemplateSheet1Name);
            var tempSheet2 = GetSheet(tempBook,TemplateSheet2Name);
            var tempSheet3 = GetSheet(tempBook, TemplateSheet3Name);
            
            if (orgSheet1 != null) {
                for (int j = OriginSheet1StartCol - 1; j < OriginSheet1EndCol; j++) {
                    string name = orgSheet1.GetRow(OriginSheet1StartRow-1).GetCell(j).StringCellValue;
                    GenerateTemplateSheet(ref orgSheet1, ref tempSheet1, j, name, 
                                          OriginSheet1StartRow, OriginSheet1EndRow, OriginSheet1CodeCol,
                                         TemplateSheet1StartRow, TemplateSheet1EndRow, 
                                         TemplateSheet1StartCol, TemplateSheet1EndCol, TemplateSheet1CodeCol);
                    GenerateTemplateSheet(ref orgSheet1, ref tempSheet2, j, name, 
                                          OriginSheet1StartRow, OriginSheet1EndRow, OriginSheet1CodeCol,
                                         TemplateSheet2StartRow, TemplateSheet2EndRow, 
                                         TemplateSheet2StartCol, TemplateSheet2EndCol, TemplateSheet2CodeCol);
                    GenerateTemplateSheet(ref orgSheet1, ref tempSheet3, j, name, 
                                          OriginSheet1StartRow, OriginSheet1EndRow, OriginSheet1CodeCol,
                                         TemplateSheet3StartRow, TemplateSheet3EndRow, 
                                         TemplateSheet3StartCol, TemplateSheet3EndCol, TemplateSheet3CodeCol);
                    var fs = new FileStream(Path.Combine(Path.GetDirectoryName(TemplatePath),name+".xls"), FileMode.Create);
                    tempBook.Write(fs);
                    fs.Close();
                    tempBook = CreateWorkook(TemplatePath);
                    tempSheet1 = GetSheet(tempBook, TemplateSheet1Name);
                    tempSheet2 = GetSheet(tempBook, TemplateSheet2Name);
                    tempSheet3 = GetSheet(tempBook, TemplateSheet3Name);
                }
            }
            if (orgSheet2 != null) {
                for (int j = OriginSheet2StartCol - 1; j < OriginSheet2EndCol; j++) {
                    string name = orgSheet2.GetRow(OriginSheet1StartRow-1).GetCell(j).StringCellValue;
                    GenerateTemplateSheet(ref orgSheet2, ref tempSheet1, j, name, 
                                          OriginSheet2StartRow, OriginSheet2EndRow, OriginSheet2CodeCol,
                                         TemplateSheet1StartRow, TemplateSheet1EndRow, 
                                         TemplateSheet1StartCol, TemplateSheet1EndCol, TemplateSheet1CodeCol);
                    GenerateTemplateSheet(ref orgSheet2, ref tempSheet2, j, name, 
                                          OriginSheet2StartRow, OriginSheet2EndRow, OriginSheet2CodeCol,
                                         TemplateSheet2StartRow, TemplateSheet2EndRow, 
                                         TemplateSheet2StartCol, TemplateSheet2EndCol, TemplateSheet2CodeCol);
                    GenerateTemplateSheet(ref orgSheet2, ref tempSheet3, j, name, 
                                          OriginSheet2StartRow, OriginSheet2EndRow, OriginSheet2CodeCol,
                                         TemplateSheet3StartRow, TemplateSheet3EndRow, 
                                         TemplateSheet3StartCol, TemplateSheet3EndCol, TemplateSheet3CodeCol);
                    var fs = new FileStream(Path.Combine(Path.GetDirectoryName(TemplatePath),name+".xls"), FileMode.Create);
                    tempBook.Write(fs);
                    fs.Close();
                    tempBook = CreateWorkook(TemplatePath);
                    tempSheet1 = GetSheet(tempBook, TemplateSheet1Name);
                    tempSheet2 = GetSheet(tempBook, TemplateSheet2Name);
                    tempSheet3 = GetSheet(tempBook, TemplateSheet3Name);
                }
            }
            
            MessageBox.Show("OK!");
        }


        void GenerateTemplateSheet(ref ISheet orgSheet, ref ISheet tempSheet, 
                                   int orgCol, string name, 
                                   int orgStartRow, int orgEndRow, int orgCodeCol, 
                                   int tempStartRow, int tempEndRow, 
                                   int tempStartCol, int tempEndCol, int tempCodeCol)
        {
            for (int i = orgStartRow; i < orgEndRow; i++) {
                if (tempSheet != null) {
                    for (int y = tempStartRow - 1; y < tempEndRow; y++) {
                        for (int x = tempStartCol - 1; x < tempEndCol; x++) {
                            if (tempSheet.GetRow(y).GetCell(tempCodeCol - 1).NumericCellValue 
                                == orgSheet.GetRow(i).GetCell(orgCodeCol - 1).NumericCellValue) 
                            {
                                tempSheet.GetRow(y).GetCell(x).SetCellValue(orgSheet.GetRow(i).GetCell(orgCol).NumericCellValue);
                            }
                        }
                    }
                }
            }
            for (int y = tempStartRow - 1; y < tempEndRow; y++) {
                if (tempSheet == null)
                    break;
                tempSheet.GetRow(y).GetCell(tempCodeCol - 1).SetCellType(CellType.Blank);
            }
        }
        
        HSSFWorkbook CreateWorkook(string path)
        {
            var fs = new FileStream(path, FileMode.Open, FileAccess.Read);
            var book = new HSSFWorkbook(fs);
            fs.Close();
            return book;
        }
        
        ISheet GetSheet(HSSFWorkbook book, string sheetName)
        {
            if (string.IsNullOrEmpty(sheetName))
                return null;
            return book.GetSheet(sheetName);
        }
        
    }
}

SplitWindow.xaml.cs

运行填充相关设置后，点击生成按钮，瞬间完成，OK！