for Push.

This commit is contained in:
nobobo
2026-06-01 13:23:34 +09:00
parent 9e093ea99f
commit a6550e9928
93 changed files with 10393 additions and 0 deletions
+60
View File
@@ -0,0 +1,60 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace KssSmaPlaLib.IO.Excel
{
public static class ExcelCellValidatorUxer
{
/// <summary>
/// ExcelのA1形式(例: "A1", "Z99", "AA1000")かどうかを判定します。
/// </summary>
/// <param name="cellRef">セル参照文字列</param>
/// <returns>有効なA1形式ならtrue、無効ならfalse</returns>
public static bool IsValidA1Format(string cellRef)
{
if (string.IsNullOrWhiteSpace(cellRef))
return false;
// 正規表現でA1形式をチェック(列: A〜XFD、行: 1〜1048576
var match = System.Text.RegularExpressions.Regex.Match(
cellRef.ToUpperInvariant(),
@"^([A-Z]{1,3})([1-9][0-9]{0,6})$"
);
if (!match.Success)
return false;
string colPart = match.Groups[1].Value;
string rowPart = match.Groups[2].Value;
// 列がXFD(Excel最大列)以内かチェック
if (ColumnNameToNumber(colPart) > 16384)
return false;
// 行がExcel最大行以内かチェック
if (int.TryParse(rowPart, out int row))
{
return row >= 1 && row <= 1048576;
}
return false;
}
/// <summary>
/// 列名(例: "A", "Z", "AA")を列番号に変換(例: 1, 26, 27)
/// </summary>
public static int ColumnNameToNumber(string columnName)
{
int sum = 0;
foreach (char c in columnName)
{
sum *= 26;
sum += (c - 'A' + 1);
}
return sum;
}
}
}