高高手出招：如何将图片嵌入到freetextbox中，而不是只写入一个src的连接

你可以读这个图片，然后在用写字节，然后在保存在page上，在page写入以iamage形式page type

楼主：
一般将图片写入数据库中的目的是防止远程图片（非本地服务器图片）被移除，出现空白红叉，所以：
图片可以使用XMLHTTP或WebClient+正则表达式下载到本地服务器（建议保存在某个特定的图片文件夹中），然后更改为本地服务器图片文档的链接即可。

不好意思。写错了：
目的是不想在客户端保存图片文件，把freetextbox的全部内容（包括图片）全部写入数据库中。
应该是不想在服务器端保存图片文件

peterhao(青哥) 的思路是对的。但不知怎样实现
johnsuna(缘来是e) ：写入数据库还有很多好处：安全可控；易于管理维护等。

不用改FREETEXTBOX的代码，直接在后面加一些代码，比如：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;
  private System.ComponentModel.IContainer components;
  private string ConnectionString = "Integrated Security=SSPI;Initial Catalog=;Data Source=localhost;";
  private SqlConnection conn = null;
  private System.Windows.Forms.Button button2;
  private System.Windows.Forms.PictureBox pic1;
  private System.Windows.Forms.OpenFileDialog openFileDialog1;
  private System.Windows.Forms.ImageList imageList1;
  private System.Windows.Forms.TextBox textBox1;
  private System.Windows.Forms.Label label2;
    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.components = new System.ComponentModel.Container();
   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.imageList1 = new System.Windows.Forms.ImageList(this.components);
   this.textBox1 = new System.Windows.Forms.TextBox();
   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;
   //
   // imageList1
   //
   this.imageList1.ColorDepth = System.Windows.Forms.ColorDepth.Depth8Bit;
   this.imageList1.ImageSize = new System.Drawing.Size(16, 16);
   this.imageList1.TransparentColor = System.Drawing.Color.Transparent;
   //
   // textBox1
   //
   this.textBox1.Location = new System.Drawing.Point(96, 208);
   this.textBox1.Name = "textBox1";
   this.textBox1.Size = new System.Drawing.Size(64, 21);
   this.textBox1.TabIndex = 6;
   this.textBox1.Text = "";
   //
   // Form1
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(632, 445);
   this.Controls.AddRange(new System.Windows.Forms.Control[] {
                    this.textBox1,
                    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  /// <summary>
  /// 应用程序的主入口点。
  /// </summary>
  [STAThread]
  static void Main()
  {
   Application.Run(new Form1());
  }  private void button1_Click(object sender, System.EventArgs e)
  {
   openFileDialog1.ShowDialog ();   if (openFileDialog1.FileName.Trim()!="")
   {
    FileInfo fi = new FileInfo(openFileDialog1.FileName);
    string imgtitle=openFileDialog1.FileName;
    int imgdatalen=(int)fi.Length;
    byte[] imgdata = new byte[imgdatalen];
    Stream imgdatastream=fi.OpenRead();
    int n=imgdatastream.Read(imgdata,0,imgdatalen);
    if( conn.State == ConnectionState.Open)
     conn.Close();
    ConnectionString ="Integrated Security=SSPI;" + "Initial Catalog=mydb;" +"Data Source=localhost;";
    conn.ConnectionString = ConnectionString;

    try
    {
     string mySelectQuery = "INSERT INTO ImageStore(imgdata) VALUES (@imgdata )";

     SqlCommand myCommand = new SqlCommand(mySelectQuery, conn);
     SqlParameter paramData = new SqlParameter( "@imgdata", SqlDbType.Image );
     paramData.Value = imgdata;
     myCommand.Parameters.Add( paramData );     conn.Open();
     int numRowsAffected = myCommand.ExecuteNonQuery();
     conn.Close();     MessageBox.Show("成功放入图片到数据库中");
    }
    catch(Exception err)
    {
     MessageBox.Show("您输入名称可能在数据库中已存在或输入为空，请检查!"+err.ToString() );
    }
    finally
    {}
   }  }    private void button2_Click(object sender, System.EventArgs e)
  {
   if( conn.State == ConnectionState.Open)
    conn.Close();
   ConnectionString ="Integrated Security=SSPI;" + "Initial Catalog=mydb;" +"Data Source=localhost;";
   conn.ConnectionString = ConnectionString;
   string sql="SELECT *  FROM ImageStore where id="+textBox1.Text.Trim() ;
   SqlCommand command = new SqlCommand(sql, conn);
     try
   {
    conn.Open();
   }
   catch
   {
    MessageBox.Show(" 不能打开数据联接!") ;
   }


   SqlDataReader dr = command.ExecuteReader();

   if(dr.Read())
   {

    byte[] mydata=((byte[])dr["imgdata"]);
    MemoryStream myStream=new MemoryStream();
    foreach(byte a in mydata)
    {
     myStream.WriteByte(a);
    }
    Image myImage=Image.FromStream(myStream);
    myStream.Close();
               pic1.Image=myImage;
    pic1.Refresh();

   }
   else
   {
    MessageBox.Show("没有成功读入数据!") ;

   }

  conn.Close();


  }
}
}这样就写入数据库了！

<Form id="Form1" method="post" Runat="server" Enctype="multipart/form-data">
<table cellSpacing="1" cellPadding="3" width="578" align="center" border="0" borderColorLight="purple" height="96">
<TR>
<INPUT id="freetextbox" type="file" runat="server"><FONT color="#ff0000"><FONT face="宋体"></FONT><BR>
</FONT>
<BR>
<BR>
<asp:button id="Button1" runat="server" text="上传图片到数据库" Height="20px"></asp:button></TR>
</table>
</Form>
这样调用HTML控件。然后
Stream imgdatastream = freetextbox.PostedFile.InputStream;

兄弟们，都不行啊。
littlehb(网际浪子) 的方法是普通的将图片写入和从数据库中读出，跟freetextbox没搭上勾。
waterxmas(wx) 是搞错意思了。

johnsuna(缘来是e)看过你的文章。
怎么样，想想办法吧。

调试易

高高手出招：如何将图片嵌入到freetextbox中，而不是只写入一个src的连接

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