Image To SQL Server

/*
use master
go
if DB_ID('UserImage') is not null
   drop database UserImage
create database UserImage
go
use UserImage
go
create table Images
(
 Image_Name nvarchar(255) primary key,
 Image_Data Image not null
)
go
create proc InsertImage
(
 @Image_Name nvarchar(255),
 @Image_Data Image
)
as
insert into Images values(@Image_Name, @Image_Data)
go
create proc DeleteImage
(
 @Image_Name nvarchar(255)
)
as
delete from Images where Image_Name = @Image_Name
go
create proc SelectImage
(
 @Image_Name nvarchar(255)
)
as
select Image_Data from Images where Image_Name = @Image_Name
go
*/
using System;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
namespace ImageDB
{
    public partial class FormImageSQL : Form
    {
        #region
        private SqlConnection sql;
        private DataTable table;
        #endregion
        public FormImageSQL()
        {
            #region
            InitializeComponent();
            openFileImage.Filter = "图像文件|*.bmp;*.gif;*.jpg;*.jpeg;*.png|所有文件|*.*";
            pictureBox1.SizeMode = PictureBoxSizeMode.Zoom; // 图像大小按其原有的大小比例被增加或减小。
            table = new DataTable();
            DataColumn column = table.Columns.Add("Name", typeof(String));
      &nb