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PrivaPub.ClientModels/ValidatorAttributes/NoWhiteSpacesAttribute.cs

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+using PrivaPub.ClientModels.Resources;
+
+using System.ComponentModel.DataAnnotations;
+
+namespace PrivaPub.ClientModels.ValidatorAttributes
+{
+	[AttributeUsage(AttributeTargets.Property)]
+	public class NoWhiteSpacesAttribute : ValidationAttribute
+	{
+		const string errorMessageResourceName = "EmptySpacesNotAllowed";
+		readonly Type errorMessageResourceType = typeof(ErrorsResource);
+		readonly string[] spaces = new[] { 
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			" ",
+			"　",
+		};
+
+		public NoWhiteSpacesAttribute()
+		{
+			ErrorMessageResourceName = errorMessageResourceName;
+			ErrorMessageResourceType = errorMessageResourceType;
+		}
+
+		public override bool IsValid(object value)
+		{
+			var str = value?.ToString();
+			if (string.IsNullOrEmpty(str))
+				return true;
+
+			var hasWhiteSpace = false;
+			try
+			{
+				foreach (var space in spaces)
+				{
+					hasWhiteSpace = str.Contains(space);
+					if (hasWhiteSpace) break;
+				}
+
+				return !hasWhiteSpace;
+			}
+			catch (Exception ex)
+			{
+				Console.WriteLine(ex.Message);
+				return false;
+			}
+		}
+	}
+}