Build-Fixes, string.ParseDecimal

AMWD.Common/Extensions/StringExtensions.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using System.Text;
 
@@ -117,5 +118,20 @@ namespace System
 
 			return str;
 		}
+
+		/// <summary>
+		/// Parses a <see cref="string"/> to a <see cref="decimal"/> using culture "de" or invariant.
+		/// </summary>
+		/// <param name="decString">The string to parse.</param>
+		/// <returns></returns>
+		public static decimal ParseDecimal(this string decString)
+		{
+			int dotIndex = decString.LastIndexOf('.');
+			int commaIndex = decString.LastIndexOf(',');
+
+			var culture = dotIndex < commaIndex ? new CultureInfo("de-DE") : CultureInfo.InvariantCulture;
+
+			return decimal.Parse(decString, culture);
+		}
 	}
 }