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QWERTYkez.ExcelProcessor/Editors/NumberFormatPattern.cs

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+namespace QWERTYkez.ExcelProcessor.Editors;
+
+public class NumberFormatPattern
+{
+    public string Format { get; }
+    internal int? Id { get; private set; }
+
+    public NumberFormatPattern(string format, ushort id = 0)
+    {
+        Format = format ?? throw new ArgumentNullException(nameof(format));
+        if (id != 0) Id = id;
+    }
+
+    internal void Attach(ushort id) => Id = id;
+
+    public override bool Equals(object? obj) =>
+        obj is NumberFormatPattern other && Format == other.Format;
+
+    public override int GetHashCode() => Format?.GetHashCode() ?? 0;
+}