请教:如何从openfiledialog读取一个图片到picturebox上呀.

Question

不是有个filename吗，那个是路径，用picturebox.image=

Answer 1

OpenFileDialog dlg = new OpenFileDialog();
dlg.ShowDialog();
FileStream fs = new FileStream( dlg.FileName, FileMode.Open, FileAccess.Read);
System.Drawing.Image img = System.Drawing.Image.FromStream(fs);
pictureBox1.Image = img;
fs.Close();

Answer 2

初始化：
this.button1 = new System.Windows.Forms.Button();
this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.openFileDialog1.DefaultExt = "jpg";
this.openFileDialog1.Filter = "JPEG and GIF Images(*.jpg;*.gif)|*.jpg;*.gif";
this.openFileDialog1.InitialDirectory = "c:\\";//自己定义
this.openFileDialog1.RestoreDirectory = true;
this.button1.Location = new System.Drawing.Point(24, 32);//自己定义
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(184, 32);
this.button1.TabIndex = 0;
this.button1.Text = "Show OpenFileDialog";
this.button1.Click += new System.EventHandler(this.button1_Click);
this.pictureBox1.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
| System.Windows.Forms.AnchorStyles.Left) 
| System.Windows.Forms.AnchorStyles.Right);
this.pictureBox1.Location = new System.Drawing.Point(8, 0);//自己定义
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(264, 352);
this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.CenterImage;
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;应用：
private void button1_Click(object sender, System.EventArgs e)
{
System.Windows.Forms.DialogResult dr = openFileDialog1.ShowDialog();
if (dr == System.Windows.Forms.DialogResult.OK) 
pictureBox1.Image=Image.FromFile(openFileDialog1.FileName);
}