does validate single digit numbers

Author: mythz

src/ServiceStack.Text/DynamicNumber.cs

@@ -674,7 +674,7 @@ public static bool TryParse(string strValue, out object result)
             if (strValue.Length == 1)
             {
                 int singleDigit = strValue[0];
-                if (singleDigit >= 48 || singleDigit <= 57) // 0 - 9
+                if (singleDigit >= 48 && singleDigit <= 57) // 0 - 9
                 {
                     result = singleDigit - 48; // 0 
                     return true;

tests/ServiceStack.Text.Tests/DynamicNumberTests.cs

@@ -203,5 +203,13 @@ public void Can_get_Nullable_number()
             Assert.That(number.ToString(null1), Is.EqualTo("1"));
         }
 
+        [Test]
+        public void Can_text_for_numbers()
+        {
+            object x = null;
+            Assert.That(DynamicNumber.TryParse("(", out x), Is.False);
+        }
+
+
     }
 }