142 lines
4.2 KiB
C#
142 lines
4.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using unvell.ReoGrid;
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namespace WpfApp.Utils
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{
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/// <summary>
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/// Excel 操作静态工具类（基于 ReoGrid）
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/// </summary>
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public static class ExcelHelper
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{
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private static ReoGridControl reoGridControl;
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private static Worksheet currentSheet;
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static ExcelHelper()
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{
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reoGridControl = new ReoGridControl();
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}
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/// <summary>
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/// 从模板加载 Excel 文件
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/// </summary>
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public static void LoadTemplate(string filePath)
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{
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if (!File.Exists(filePath))
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throw new FileNotFoundException($"模板文件不存在: {filePath}");
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reoGridControl.Load(filePath);
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currentSheet = reoGridControl.CurrentWorksheet;
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}
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/// <summary>
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/// 切换到指定工作表
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/// </summary>
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public static void SelectSheet(string sheetName)
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{
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if (reoGridControl == null)
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throw new InvalidOperationException("请先调用 LoadTemplate 方法加载文件。");
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var sheet = reoGridControl.Worksheets[sheetName];
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if (sheet == null)
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throw new ArgumentException($"未找到名为 '{sheetName}' 的工作表。");
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currentSheet = sheet;
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reoGridControl.CurrentWorksheet = sheet;
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}
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/// <summary>
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/// 获取当前工作表名称
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/// </summary>
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public static string GetCurrentSheetName()
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{
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return currentSheet?.Name ?? string.Empty;
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}
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/// <summary>
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/// 读取单元格
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/// </summary>
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public static object ReadCell(string cellName)
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{
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return currentSheet?.GetCellData(cellName);
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}
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/// <summary>
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/// 设置单元格值
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/// </summary>
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public static void WriteCell(string cellName, object value)
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{
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currentSheet?.SetCellData(cellName, value);
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}
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/// <summary>
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/// 批量写入单元格
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/// </summary>
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public static void WriteCells(Dictionary<string, object> cellValues)
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{
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foreach (var kv in cellValues)
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{
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currentSheet?.SetCellData(kv.Key, kv.Value);
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}
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}
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/// <summary>
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/// 在指定行插入数据（从 startColumn 开始）
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/// </summary>
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public static void InsertRowData(int rowIndex, int startColumn, IList<object> values)
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{
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if (currentSheet == null)
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throw new InvalidOperationException("请先加载模板并选择工作表。");
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for (int i = 0; i < values.Count; i++)
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{
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currentSheet[rowIndex, startColumn + i] = values[i];
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}
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}
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/// <summary>
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/// 保存为新文件
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/// </summary>
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public static void SaveAs(string savePath)
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{
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if (reoGridControl == null)
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throw new InvalidOperationException("请先调用 LoadTemplate 方法加载文件。");
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reoGridControl.Save(savePath, unvell.ReoGrid.IO.FileFormat.Excel2007);
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}
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/// <summary>
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/// 打开 Excel 文件（并显示到 ReoGrid 控件）
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/// </summary>
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/// <param name="filePath">Excel 文件路径</param>
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/// <param name="reoGridHost">用于显示的 ReoGridControl 容器</param>
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public static void OpenExcel(string filePath, ReoGridControl reoGridHost)
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{
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if (!File.Exists(filePath))
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throw new FileNotFoundException($"文件不存在: {filePath}");
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// 替换当前控件引用
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reoGridControl?.Dispose();
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reoGridControl = reoGridHost;
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// 加载 Excel 文件
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reoGridControl.Load(filePath);
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// 默认显示第一个工作表
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currentSheet = reoGridControl.CurrentWorksheet;
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}
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/// <summary>
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/// 清理资源
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/// </summary>
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public static void Dispose()
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{
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reoGridControl?.Dispose();
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reoGridControl = null;
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currentSheet = null;
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}
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}
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}
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