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实现Excel合并工具功能

Browse Source 
- 添加EPPlus NuGet包用于Excel文件处理
- 设计完整的UI界面（文件夹选择、按钮、进度条、日志显示）
- 实现Excel文件合并核心逻辑，支持多个xlsx文件合并
- 添加错误处理和进度跟踪功能
- 提供用户友好的操作界面和提示信息

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Developer 2025-11-20 12:10:18 +08:00
parent 7abace1d8a
commit 1dffb81325
3 changed files with 376 additions and 2 deletions
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135
WinFormsApp1/Form1.Designer.cs generated
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@ -29,11 +29,142 @@
private void InitializeComponent()
{
components = new System.ComponentModel.Container();
// 主窗体设置
AutoScaleMode = AutoScaleMode.Font;
ClientSize = new Size(800, 450);
Text = "Form1";
ClientSize = new Size(600, 400);
Text = "Excel合并工具";
StartPosition = FormStartPosition.CenterScreen;
// 创建控件
grpSourceFolder = new GroupBox();
lblSourcePath = new Label();
txtSourcePath = new TextBox();
btnBrowseSource = new Button();
grpOutputFolder = new GroupBox();
lblOutputPath = new Label();
txtOutputPath = new TextBox();
btnBrowseOutput = new Button();
pnlButtons = new Panel();
btnMerge = new Button();
btnClear = new Button();
btnExit = new Button();
grpProgress = new GroupBox();
progressBar = new ProgressBar();
txtLog = new TextBox();
// 设置源文件夹组
grpSourceFolder.Text = "源文件夹";
grpSourceFolder.Location = new Point(10, 10);
grpSourceFolder.Size = new Size(580, 60);
grpSourceFolder.TabStop = false;
lblSourcePath.Text = "路径:";
lblSourcePath.Location = new Point(10, 25);
lblSourcePath.Size = new Size(30, 23);
txtSourcePath.Location = new Point(45, 22);
txtSourcePath.Size = new Size(470, 23);
btnBrowseSource.Text = "浏览";
btnBrowseSource.Location = new Point(520, 20);
btnBrowseSource.Size = new Size(50, 25);
btnBrowseSource.Click += new EventHandler(btnBrowseSource_Click);
grpSourceFolder.Controls.Add(lblSourcePath);
grpSourceFolder.Controls.Add(txtSourcePath);
grpSourceFolder.Controls.Add(btnBrowseSource);
// 设置输出文件夹组
grpOutputFolder.Text = "输出文件夹";
grpOutputFolder.Location = new Point(10, 80);
grpOutputFolder.Size = new Size(580, 60);
grpOutputFolder.TabStop = false;
lblOutputPath.Text = "路径:";
lblOutputPath.Location = new Point(10, 25);
lblOutputPath.Size = new Size(30, 23);
txtOutputPath.Location = new Point(45, 22);
txtOutputPath.Size = new Size(470, 23);
btnBrowseOutput.Text = "浏览";
btnBrowseOutput.Location = new Point(520, 20);
btnBrowseOutput.Size = new Size(50, 25);
btnBrowseOutput.Click += new EventHandler(btnBrowseOutput_Click);
grpOutputFolder.Controls.Add(lblOutputPath);
grpOutputFolder.Controls.Add(txtOutputPath);
grpOutputFolder.Controls.Add(btnBrowseOutput);
// 设置按钮面板
pnlButtons.Location = new Point(10, 150);
pnlButtons.Size = new Size(580, 40);
btnMerge.Text = "合并";
btnMerge.Location = new Point(10, 8);
btnMerge.Size = new Size(75, 25);
btnMerge.Click += new EventHandler(btnMerge_Click);
btnClear.Text = "清空";
btnClear.Location = new Point(100, 8);
btnClear.Size = new Size(75, 25);
btnClear.Click += new EventHandler(btnClear_Click);
btnExit.Text = "退出";
btnExit.Location = new Point(190, 8);
btnExit.Size = new Size(75, 25);
btnExit.Click += new EventHandler(btnExit_Click);
pnlButtons.Controls.Add(btnMerge);
pnlButtons.Controls.Add(btnClear);
pnlButtons.Controls.Add(btnExit);
// 设置进度组
grpProgress.Text = "进度";
grpProgress.Location = new Point(10, 200);
grpProgress.Size = new Size(580, 180);
grpProgress.TabStop = false;
progressBar.Location = new Point(10, 25);
progressBar.Size = new Size(560, 23);
progressBar.Style = ProgressBarStyle.Continuous;
txtLog.Location = new Point(10, 55);
txtLog.Size = new Size(560, 115);
txtLog.Multiline = true;
txtLog.ScrollBars = ScrollBars.Vertical;
txtLog.ReadOnly = true;
grpProgress.Controls.Add(progressBar);
grpProgress.Controls.Add(txtLog);
// 添加所有控件到窗体
Controls.Add(grpSourceFolder);
Controls.Add(grpOutputFolder);
Controls.Add(pnlButtons);
Controls.Add(grpProgress);
}
#endregion
private GroupBox grpSourceFolder;
private Label lblSourcePath;
private TextBox txtSourcePath;
private Button btnBrowseSource;
private GroupBox grpOutputFolder;
private Label lblOutputPath;
private TextBox txtOutputPath;
private Button btnBrowseOutput;
private Panel pnlButtons;
private Button btnMerge;
private Button btnClear;
private Button btnExit;
private GroupBox grpProgress;
private ProgressBar progressBar;
private TextBox txtLog;
}
}

239
WinFormsApp1/Form1.cs
View File

@ -6,5 +6,244 @@ namespace WinFormsApp1
{
InitializeComponent();
}
private void btnBrowseSource_Click(object sender, EventArgs e)
{
using (FolderBrowserDialog dialog = new FolderBrowserDialog())
{
dialog.Description = "选择Excel文件夹";
if (dialog.ShowDialog() == DialogResult.OK)
{
txtSourcePath.Text = dialog.SelectedPath;
txtOutputPath.Text = dialog.SelectedPath; // 默认输出到源文件夹
Log($"源文件夹: {dialog.SelectedPath}");
}
}
}
private void btnBrowseOutput_Click(object sender, EventArgs e)
{
using (FolderBrowserDialog dialog = new FolderBrowserDialog())
{
dialog.Description = "选择输出文件夹";
if (dialog.ShowDialog() == DialogResult.OK)
{
txtOutputPath.Text = dialog.SelectedPath;
Log($"输出文件夹: {dialog.SelectedPath}");
}
}
}
private void btnClear_Click(object sender, EventArgs e)
{
txtSourcePath.Clear();
txtOutputPath.Clear();
txtLog.Clear();
progressBar.Value = 0;
}
private void btnExit_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void btnMerge_Click(object sender, EventArgs e)
{
// 前置校验
if (string.IsNullOrEmpty(txtSourcePath.Text) || string.IsNullOrEmpty(txtOutputPath.Text))
{
MessageBox.Show("请选择源文件夹和输出文件夹", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
try
{
MergeExcel();
}
catch (Exception ex)
{
MessageBox.Show($"合并过程中发生错误: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
Log($"合并失败: {ex.Message}");
}
}
private void MergeExcel()
{
var sourceDir = txtSourcePath.Text;
var outputDir = txtOutputPath.Text;
var outputFile = Path.Combine(outputDir, "合并结果.xlsx");
if (!Directory.Exists(sourceDir))
{
MessageBox.Show("源文件夹不存在", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// 查找xlsx文件（排除合并结果本身）
var xlsxFiles = Directory.GetFiles(sourceDir, "*.xlsx")
.Where(f => !Path.GetFileName(f).Equals("合并结果.xlsx", StringComparison.OrdinalIgnoreCase))
.ToArray();
if (xlsxFiles.Length == 0)
{
MessageBox.Show("未找到待合并的Excel文件", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
Log($"找到 {xlsxFiles.Length} 个文件，开始合并...");
progressBar.Maximum = xlsxFiles.Length;
progressBar.Value = 0;
// 设置EPPlus许可证上下文
OfficeOpenXml.ExcelPackage.LicenseContext = OfficeOpenXml.LicenseContext.NonCommercial;
var allData = new List<System.Data.DataTable>();
var headers = new List<string>();
try
{
// 处理每个文件
for (int idx = 0; idx < xlsxFiles.Length; idx++)
{
var file = xlsxFiles[idx];
var fileName = Path.GetFileName(file);
Log($"处理: {fileName}");
try
{
using (var package = new OfficeOpenXml.ExcelPackage(new FileInfo(file)))
{
if (package.Workbook.Worksheets.Count == 0)
{
Log($"跳过空文件: {fileName}");
continue;
}
var worksheet = package.Workbook.Worksheets[0]; // 使用第一个工作表
var table = new System.Data.DataTable();
// 获取表头
if (headers.Count == 0)
{
var columnCount = worksheet.Dimension.End.Column;
for (int col = 1; col <= columnCount; col++)
{
var header = worksheet.Cells[1, col].Text?.Trim() ?? $"Column{col}";
headers.Add(header);
table.Columns.Add(header);
}
}
else
{
// 创建相同结构的表
foreach (var header in headers)
{
table.Columns.Add(header);
}
}
// 跳过表头行，从第二行开始读取数据
var rowCount = worksheet.Dimension.End.Row;
for (int row = 2; row <= rowCount; row++)
{
var dataRow = table.NewRow();
var isEmpty = true;
for (int col = 0; col < headers.Count; col++)
{
var cellValue = worksheet.Cells[row, col + 1].Text;
dataRow[col] = cellValue;
if (!string.IsNullOrWhiteSpace(cellValue))
{
isEmpty = false;
}
}
if (!isEmpty)
{
table.Rows.Add(dataRow);
}
}
if (table.Rows.Count > 0)
{
allData.Add(table);
Log($"成功读取 {fileName}: {table.Rows.Count} 行数据");
}
else
{
Log($"跳过无数据文件: {fileName}");
}
}
}
catch (Exception ex)
{
Log($"处理失败: {fileName} - {ex.Message}");
continue;
}
progressBar.Value = idx + 1;
Application.DoEvents();
}
// 合并数据并保存
if (allData.Count == 0)
{
MessageBox.Show("无有效数据可合并", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// 创建合并后的Excel文件
using (var outputPackage = new OfficeOpenXml.ExcelPackage())
{
var outputSheet = outputPackage.Workbook.Worksheets.Add("合并结果");
// 写入表头
for (int col = 0; col < headers.Count; col++)
{
outputSheet.Cells[1, col + 1].Value = headers[col];
}
int currentRow = 2;
int totalRows = 0;
// 合并所有数据
foreach (var table in allData)
{
foreach (System.Data.DataRow row in table.Rows)
{
for (int col = 0; col < headers.Count; col++)
{
outputSheet.Cells[currentRow, col + 1].Value = row[col];
}
currentRow++;
totalRows++;
}
}
// 保存文件
outputPackage.SaveAs(new FileInfo(outputFile));
Log($"合并完成！文件路径: {outputFile}");
Log($"总行数: {totalRows} | 总列数: {headers.Count}");
MessageBox.Show($"合并成功！\n文件：{outputFile}\n行数：{totalRows}",
"完成", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
catch (Exception ex)
{
Log($"保存失败: {ex.Message}");
MessageBox.Show($"保存文件失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void Log(string msg)
{
txtLog.AppendText($"{msg}\r\n");
txtLog.ScrollToCaret();
Application.DoEvents();
}
}
}

4
WinFormsApp1/WinFormsApp1.csproj
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@ -8,4 +8,8 @@
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="EPPlus" Version="7.5.2" />
</ItemGroup>
</Project>