fixed sieve model RemoveSignVietnameseString

Sieve/Models/RemoveVietNamSign.cs

+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Sieve.Models
+{
+    public class RemoveVietNamSign
+    {
+        private string[] VietnameseSigns = new string[]
+           {
+
+            "aAeEoOuUiIdDyY",
+
+            "áàạảãâấầậẩẫăắằặẳẵ",
+
+            "ÁÀẠẢÃÂẤẦẬẨẪĂẮẰẶẲẴ",
+
+            "éèẹẻẽêếềệểễ",
+
+            "ÉÈẸẺẼÊẾỀỆỂỄ",
+
+            "óòọỏõôốồộổỗơớờợởỡ",
+
+            "ÓÒỌỎÕÔỐỒỘỔỖƠỚỜỢỞỠ",
+
+            "úùụủũưứừựửữ",
+
+            "ÚÙỤỦŨƯỨỪỰỬỮ",
+
+            "íìịỉĩ",
+
+            "ÍÌỊỈĨ",
+
+            "đ",
+
+            "Đ",
+
+            "ýỳỵỷỹ",
+
+            "ÝỲỴỶỸ"
+           };
+        public string RemoveSignAndLowerCase4VietnameseString(string str)
+        {
+            for (int i = 1; i < VietnameseSigns.Length; i++)
+            {
+                for (int j = 0; j < VietnameseSigns[i].Length; j++)
+                    str = str.Replace(VietnameseSigns[i][j], VietnameseSigns[0][i - 1]);
+            }
+            return str;
+        }
+    }
+}

Sieve/Services/SieveProcessor.cs

@@ -387,6 +387,7 @@ namespace Sieve.Services
             return Expression.Lambda<Func<TEntity, bool>>(outerExpression, parameterExpression);
         }
 
+       
         private IQueryable<TEntity> ApplyFiltering<TEntity>(
             TSieveModel model,
             IQueryable<TEntity> result,
@@ -420,6 +421,7 @@ namespace Sieve.Services
 
                         foreach (var filterTermValue in filterTerm.Values)
                         {
+                            //string filterTermValue = this.RemoveSign4VietnameseString(filterTermValue1); //Added by thien to emove vietnam
 
                             dynamic constantVal = converter.CanConvertFrom(typeof(string))
                                                       ? converter.ConvertFrom(filterTermValue)
@@ -428,11 +430,21 @@ namespace Sieve.Services
                             Expression filterValue = GetClosureOverConstant(constantVal, property.PropertyType);
 
 
-                            if (filterTerm.OperatorIsCaseInsensitive)
+                            if (true)//filterTerm.OperatorIsCaseInsensitive Make search insensitive case //comment by thien
                             {
-                                propertyValue = Expression.Call(propertyValue,
+                                var upperData = Expression.Call(propertyValue,
                                     typeof(string).GetMethods()
                                     .First(m => m.Name == "ToUpper" && m.GetParameters().Length == 0));
+                                propertyValue = Expression.Call(
+                                Expression.New(typeof(RemoveVietNamSign)),
+                                typeof(RemoveVietNamSign).GetMethod("RemoveSignVietnameseString", new Type[] { typeof(string)}),
+                                upperData
+                                );
+
+                                /*propertyValue = Expression.Call(propertyValue,
+                                    typeof(string).GetMethods()
+                                    .First(m => m.Name == "ToUpper" && m.GetParameters().Length == 0));*/
+
                                 
                                 filterValue = Expression.Call(filterValue,
                                     typeof(string).GetMethods()