下面给大家一个用于C# Winform的存入、读取程序。其中不同请大家自己比较!(为了方便起见,我将数据库字段简化为二个:imgtitle和imgdata。
下面给大家一个用于C# Winform的存入、读取程序。其中不同请大家自己比较!(为了方便起见,我将数据库字段简化为二个:imgtitle和imgdata。
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Data.SqlClient;
namespace WindowsApplication21
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Button button1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
private string ConnectionString = "Integrated Security=SSPI;Initial Catalog=;Data Source=localhost;";
private SqlConnection conn = null;
private SqlCommand cmd = null;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.PictureBox pic1;
private System.Windows.Forms.OpenFileDialog openFileDialog1;
private string sql = null;
private System.Windows.Forms.Label label2;
private string nowId=null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
conn = new SqlConnection(ConnectionString);
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if (conn.State == ConnectionState.Open)
conn.Close();
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.button1 = new System.Windows.Forms.Button();
this.pic1 = new System.Windows.Forms.PictureBox();
this.button2 = new System.Windows.Forms.Button();
this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
this.label2 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(0, 40);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(264, 48);
this.button1.TabIndex = 0;
this.button1.Text = "加入新的图片";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// pic1
//
this.pic1.Location = new System.Drawing.Point(280, 8);
this.pic1.Name = "pic1";
this.pic1.Size = new System.Drawing.Size(344, 264);
this.pic1.TabIndex = 3;
this.pic1.TabStop = false;
//
// button2
//
this.button2.Location = new System.Drawing.Point(0, 104);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(264, 40);
this.button2.TabIndex = 4;
this.button2.Text = "从数据库中恢复图像";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// openFileDialog1
//
this.openFileDialog1.Filter = ""图像文件(*.jpg,*.bmp,*.gif)|*.jpg|*.bmp|*.gif"";
//
// label2
//
this.label2.Location = new System.Drawing.Point(0, 152);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(264, 48);
this.label2.TabIndex = 5;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(632, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.label2,
this.button2,
this.pic1,
this.button1});
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion
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