trying to localize

src/Yavsc.Abstract/Attributes/Validation/YaStringLength.cs

@@ -0,0 +1,47 @@
+using System;
+
+namespace Yavsc.Attributes.Validation
+{
+    public class YaStringLength: YaValidationAttribute
+    {
+        public long MinLen { get; set; } = -1;
+        private long maxLen;
+        public YaStringLength(long maxLen) : base(
+            ()=>
+                "BadStringLength")
+        {
+            this.maxLen = maxLen;
+        }
+
+        private long excedent=0;
+        private long manquant=0;
+
+        public override bool IsValid(object value) {
+            
+            if (value == null) {
+                return false;
+            }
+            Console.WriteLine("Validating string length for "+value.ToString());
+            
+            string stringValue = value as string;
+            if (stringValue==null) return false;
+            if (MinLen>=0) 
+                {
+                    if (stringValue.Length<MinLen)
+                    {
+                        manquant = MinLen-stringValue.Length;
+                    }
+                    return false;
+                }
+            if (maxLen>=0)
+                {
+                    if (stringValue.Length>maxLen) {
+                        excedent = stringValue.Length-maxLen;
+                        return false;
+                    }
+                }
+            return true;
+        }
+
+    }
+}