在实体框架代码第一方法中映射字典 [英] Map a Dictionary in Entity Framework Code First Approach
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问题描述
我有一本这样的字典：
/// <summary>
/// Gets the leave entitlement details.
/// </summary>
/// <value>The leave entitlement details.</value>
public Dictionary<string, EmployeeLeaveEntitlement> LeaveEntitlementDetails { get; set; }
我想把它映射到数据库。是否可以使用受保护或私有的列表<>？例如：
And I want to map it to the database. Is it possible to use a protected or private List<> for that? such as:
/// <summary>
/// Gets the leave entitlement details.
/// </summary>
/// <value>The leave entitlement details.</value>
public Dictionary<string, EmployeeLeaveEntitlement> LeaveEntitlementDetails { get; set; }
public List<EmployeeLeaveEntitlement> LeveEntitlementStore
{
get
{
List<EmployeeLeaveEntitlement> leaveEntitlements = new List<EmployeeLeaveEntitlement>();
foreach (KeyValuePair<string, EmployeeLeaveEntitlement> leaveType in LeaveEntitlementDetails)
{
leaveEntitlements.Add(leaveType.Value);
}
return leaveEntitlements;
}
set
{
foreach (EmployeeLeaveEntitlement item in value)
{
this.LeaveEntitlementDetails.Add(item.LeaveType, item);
}
}
}
任何人都可以帮我吗？ / p>
Can anyone help me?
推荐答案
实体框架目前不支持本地映射字典。
Entity Framework does not presently support mapping a Dictionary natively.
有关详细信息和解决方法，请参阅以下内容：
See the following for more information and work-arounds:
Entity Framework 4 POCO with Dictionary
EF Code First - Map Dictionary or custom type as an nvarchar
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