91 lines
3.0 KiB
C#
91 lines
3.0 KiB
C#
using DeviceRepair.Models;
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using NPOI.SS.UserModel;
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using System;
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namespace DeviceRepairAndOptimization.Common.NpoiExtend
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{
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public static class SheetExtend
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{
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/// <summary>
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/// 自定义方法实现 [A,2] 形式的单元格定位
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/// </summary>
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/// <param name="sheet"></param>
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/// <param name="address"></param>
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/// <returns></returns>
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public static ICell LocateCellByAddress(this ISheet sheet, string address)
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{
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// 解析地址，这里简单处理，假设地址格式总是为 "[列字母,行号]"
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// 更复杂的Excel地址解析可能需要更详细的逻辑
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var parts = address.Trim('[', ']').Split(',');
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if (parts.Length != 2)
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{
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throw new ArgumentException("传入的单元格字符串不正确.");
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}
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var columnLetter = parts[0];
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int rowIndex;
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if (!int.TryParse(parts[1], out rowIndex) || rowIndex < 0)
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{
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throw new ArgumentException("传入的单元格字符串行号不正确.");
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}
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// 将列字母转换为列索引
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int columnIndex = ColumnIndexFromLetter(columnLetter);
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// 获取单元格
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IRow row = sheet.GetRow(rowIndex - 1);
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if (row == null)
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{
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row = sheet.CreateRow(rowIndex - 1);
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}
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ICell cell = row.GetCell(columnIndex);
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if (cell == null)
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{
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cell = row.CreateCell(columnIndex);
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}
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return cell;
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}
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/// <summary>
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/// [A,2] 形式的单元格 转 行号及列号
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/// </summary>
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/// <param name="address"></param>
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/// <returns></returns>
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public static SheetDataItem AddressToIndex(string address)
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{
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// 解析地址，这里简单处理，假设地址格式总是为 "[列字母,行号]"
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// 更复杂的Excel地址解析可能需要更详细的逻辑
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var parts = address.Trim('[', ']').Split(',');
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if (parts.Length != 2)
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{
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throw new ArgumentException("传入的单元格字符串不正确.");
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}
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var columnLetter = parts[0];
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int rowIndex;
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if (!int.TryParse(parts[1], out rowIndex) || rowIndex < 0)
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{
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throw new ArgumentException("传入的单元格字符串行号不正确.");
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}
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// 将列字母转换为列索引
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int columnIndex = ColumnIndexFromLetter(columnLetter);
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return new SheetDataItem() { RowIndex = rowIndex - 1, ColumnIndex = columnIndex };
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}
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public static int ColumnIndexFromLetter(string columnLetter)
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{
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int result = 0;
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foreach (char c in columnLetter)
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{
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result *= 26;
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result += (c - 'A' + 1);
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}
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return result - 1; // 调整索引从0开始
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}
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}
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}
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