在Visual Studio 2015中显示来自实体的阿拉伯字符时出错

Question

当我使用visual studio 2013显示阿拉伯字符时，它们会正确显示但是当我使用visual studio 2015时，如果我使用实体类，阿拉伯字符会显示奇怪的字符（ÇáãÌãæÚÉ），但如果我使用模型阿拉伯字符正确显示。视觉工作室2015中的实体有什么问题？

namespace SimpleIAP
{
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

public partial class tblProduct
{
    public tblProduct()
    {
        this.tblPurchaseDetails = new HashSet<tblPurchaseDetail>();
        this.tblProductOpeningBalances = new HashSet<tblProductOpeningBalance>();
        this.tblSalesInvoiceDetails = new HashSet<tblSalesInvoiceDetail>();
        this.tblStores = new HashSet<tblStore>();
    }

    [Key]
    [DisplayName("رقم المنتج")]
    public int ProductID { get; set; }

    [Required(ErrorMessage = "مطلوب")]
    [DisplayName("اسم المنتج")]
    public string Name { get; set; }

    [Required(ErrorMessage = "مطلوب")]
    [DisplayName("المجموعة")]
    [ForeignKey("tblCategory")]
    public int CategoryID_FK { get; set; }

    [DisplayName("الوصف")]
    public string Description { get; set; }

    [DisplayName("حد إعادة الطلب")]
    [RegularExpression("^[0-9]+$", ErrorMessage = "أرقام فقط")]
    public int ReOrderLimit { get; set; }

    [DisplayName("سعر القطاعى")]
    [RegularExpression(@"(^\d*\.?\d*[0-9]+\d*$)|(^[0-9]+\d*\.\d*$)", ErrorMessage = "أرقام فقط")]
    public decimal PriceRetail { get; set; }

    [DisplayName("سعر الجملة")]
    [RegularExpression(@"(^\d*\.?\d*[0-9]+\d*$)|(^[0-9]+\d*\.\d*$)", ErrorMessage = "أرقام فقط")]
    public decimal PriceWholeSale { get; set; }

    public virtual tblCategory tblCategory { get; set; }
    public virtual ICollection<tblStore> tblStores { get; set; }
    public virtual ICollection<tblPurchaseDetail> tblPurchaseDetails { get; set; }
    public virtual ICollection<tblSalesInvoiceDetail> tblSalesInvoiceDetails { get; set; }
    public virtual ICollection<tblProductOpeningBalance> tblProductOpeningBalances { get; set; }
    }
}

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