【求助】sql保存图片的问题
理想效果：listbox1里面是person_id号，选中哪个在picturebox里就有对应图片，单机更新button，从电脑里选一张图片，就能保存
我的实际效果：数据库只有ID号，还没有保存图片任何，数据库图片是image类型，运行这个程序之后，每次在opendialogfile里选图之后，点打开，随后又出现一次opendialogfile界面，还得选，再点击打开，系统就报错，求助！很着急
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
  {
  ShowImage();
  }
private void ShowImage()
  {
  if (this.pictureBox9 != null)
  this.pictureBox9.Image.Dispose();
  if(ds.Tables[0].Rows[this.listBox1.SelectedIndex][1]!=Convert.DBNull)
  {

  byte[] bytes = (byte[])ds.Tables[0].Rows[this.listBox1.SelectedIndex][1];
  MemoryStream memStream = new MemoryStream();
  Bitmap myImage = new Bitmap(memStream);
  this.pictureBox9.Image = myImage;
  }
  else
  {
  this.pictureBox9.Image = null;
  }
  }
private void button更新_Click(object sender, EventArgs e)
  {
  openFileDialog1.Filter = "*.jpg,*.jepg,*.bmp,*.gif,*.ico,*.png,*.tif,*.wmf;*.*|*.jpg;*.jepg;*.bmp;*.gif;*.ico;*.png;*.tif;*.wmf;*.*";
  this.openFileDialog1.ShowDialog();
  if (this.openFileDialog1.ShowDialog() == DialogResult.OK)
  {
  Stream myStream = openFileDialog1.OpenFile();
  int Length = (int)myStream.Length;
  byte[] bytes = new byte[Length];
  myStream.Read(bytes, 0, Length);
  myStream.Close();
  ds.Tables[0].Rows[this.listBox1.SelectedIndex][9] = bytes;


  try
  {
  ad.Update(ds.Tables[0]);
  MessageBox.Show("保存成功！");
  //OwnerPic = openFileDialog1.FileName;
  //pictureBox9.Image = Image.FromFile(OwnerPic);

  }
  catch (Exception err)
  {
  MessageBox.Show(err.Message, "保存失败");
  }
  ShowImage();
  }
  }

------解决方案--------------------
C#在SQl中存取图片image
------解决方案--------------------
写了两个

C# code

this.openFileDialog1.ShowDialog();