Question

c#picturebox控件改变sizemode哪个都没有效果！！！求大神看下

public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
Image myImage;

private void btnshow_Click(object sender, EventArgs e)
{
openFileDialog1.Filter = "*.jpg,*.jpeg,*.bmp,*.gif,*.ico,*.png,*.tif,*.wmf|*.jpg;*.jepg;*.bmp;*.gif;*.ico;*.png;*.tif;*.wmf";
openFileDialog1.ShowDialog();
myImage = System.Drawing.Image.FromFile(openFileDialog1.FileName);
pictureBox1.Image = myImage;
pictureBox1.Height = myImage.Height;
pictureBox1.Width = myImage.Width;
}

private void btnsf_Click(object sender, EventArgs e)
{
pictureBox1.Height=Convert.ToInt32(myImage.Height*Convert.ToSingle(textsf.Text.Trim()));
pictureBox1.Width = Convert.ToInt32(myImage.Width * Convert.ToSingle(textsf.Text.Trim()));

}

说明下改sizemode不管用，backgo...这个也不关用！！！！





Answer 1

你要把PictureBox的SizeMode属性改成StretchImage（拉伸）。