从本地加载图片
<dxe:ImageEdit Name="iePortrait" Height="120" Width="100" Stretch="Uniform" ToolTip="{DynamicResource ResourceKey=ResPortrait}" Cursor="Hand" ShowMenu="False"></dxe:ImageEdit>
public class OpenPictureCommand : Command<RegistrationEditor> { protected override void Executed(object sender, ExecutedRoutedEventArgs e) { System.Windows.Forms.OpenFileDialog ofd = new System.Windows.Forms.OpenFileDialog(); //EventBinder.BindControls(ofd); // added ofd.Filter = "(*.jpg)|*.jpg"; if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK) { string fileName = ofd.FileName; Console.WriteLine(fileName); BitmapImage img = new BitmapImage(new Uri(fileName)); Owner.iePortrait.EditValue = img; } } }
Save :
public string BitmapimageToBase64(BitmapImage bi) { if (bi == null) return ""; byte[] b = this.getJPGFromImageControl(bi); string base64String = Convert.ToBase64String(b); return base64String; } public byte[] getJPGFromImageControl(BitmapImage imageC) { MemoryStream memStream = new MemoryStream(); JpegBitmapEncoder encoder = new JpegBitmapEncoder(); encoder.Frames.Add(BitmapFrame.Create(imageC)); encoder.Save(memStream); return memStream.GetBuffer(); }
Load:
iePortrait.EditValue = this.Base64ToBitmapImage(selectedPortrait.Portrait);
public BitmapImage Base64ToBitmapImage(string str)
{
if (str == null || str=="") return null;
byte[] imageBytes = Convert.FromBase64String(str);
BitmapImage bitmapImage = new BitmapImage();
MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length);
bitmapImage.BeginInit();
bitmapImage.StreamSource = ms;
bitmapImage.EndInit();
return bitmapImage;
}
原文：http://www.cnblogs.com/quietwalk/p/3536186.html