devexpress datagrid 与ColorEdit 如何存入数据库

这样一个数据库表，Color字段，我们希望与datagrid关联：

USE [SchedulerDB]
GO

/****** Object:  Table [dbo].[Resources]    Script Date: 11/19/2014 10:16:03 ******/
IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N[dbo].[Resources]) AND type in (NU))
DROP TABLE [dbo].[Resources]
GO

USE [SchedulerDB]
GO

/****** Object:  Table [dbo].[Resources]    Script Date: 11/19/2014 10:16:03 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [dbo].[Resources](
	[UniqueID] [int] IDENTITY(1,1) NOT NULL,
	[ResourceID] [int] NOT NULL,
	[ResourceName] [nvarchar](50) NULL,
	[Color] [int] NULL,
	[Image] [image] NULL,
	[CustomField1] [nvarchar](max) NULL,
 CONSTRAINT [PK_Resources] PRIMARY KEY CLUSTERED 
(
	[UniqueID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO

EXEC sys.sp_addextendedproperty @name=NMS_Description, @value=N岗位 , @level0type=NSCHEMA,@level0name=Ndbo, @level1type=NTABLE,@level1name=NResources
GO

在一切OK后，发现，会遇到一个没有实现IConverible接口的错误。

解决办法是：

也就是说，把StoreColorAsInteger设置成为True