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c# convert column name to number
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c# convert column name to number
csharp by
DeuxAlpha
on Mar 09 2020
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public static int ExcelColumnNameToNumber(string columnName) { if (string.IsNullOrEmpty(columnName)) throw new ArgumentNullException("columnName"); columnName = columnName.ToUpperInvariant(); int sum = 0; for (int i = 0; i < columnName.Length; i++) { sum *= 26; sum += (columnName[i] - 'A' + 1); } return sum; }
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