dropdownlistfor in mvc Guid to string issue [英] dropdownlistfor in mvc Guid to string issue

问题描述

我正在尝试在mvc asp.net中填充dropdownlistFor。主键是GUID。

  var  result2 = db.Divisions.Select（f = >  < span class =code-keyword> new  SelectListItem 
 {
 Value = f.DivisionID.ToString（），
 Text = f.DivisionName 
}）; 
 
 ViewBag.SectionList = result1; 
 

面对ToSring问题（）



LINQ to Entities无法识别方法'System.String ToString（）'方法，并且此方法无法转换为商店表达式。



请建议我解决这个问题。在此先感谢

解决方案

试试这个

 Value = System.Data.Objects.SqlClient.SqlFunctions。 StringConvert.StringConvert（f.DivisionID）

I am trying to populate dropdownlistFor in mvc asp.net . primary key is GUID .

var result2 = db.Divisions.Select(f => new SelectListItem
{
    Value = f.DivisionID.ToString(),
    Text = f.DivisionName
});

ViewBag.SectionList =result1;

Facing issue in ToSring()

LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method cannot be translated into a store expression.

Please suggest me some solution of this issue. Thanks in advance

解决方案

Try this

Value =  System.Data.Objects.SqlClient.SqlFunctions.StringConvert.StringConvert(f.DivisionID)

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