WPF图像为byte [] [英] WPF Image to byte[]

问题描述

我想从 System.Windows.Controls.Image 转换为字节[] 和我没有知道哪些方法从图像类可以在这个诗情帮助下，我真的不知道该怎么办的方式，因为在我的LINQ模型中的字段显示为二进制键入，我要改变这一点，如果我想将其保存像字节[] 键入<？/ p>

我发现code张贴在这里，但没有使用WPF：

 位图newBMP =新位图（originalBMP，newWidth，newHeight）;
System.IO.MemoryStream流=新System.IO.MemoryStream（）;
newBMP.Save（流System.Drawing.Imaging.ImageFormat.Bmp）;
PHJProjectPhoto myPhoto =新PHJProjectPhoto {
    ProjectPhoto = stream.ToArray（）//＆LT;＆LT; ---这将您的流转换为一个byte []
    订购日期= DateTime.Now，
    ProjectPhotoCaption = ProjectPhotoCaptionTextBox.Text，
    专案编号= selectedProjectId
};
 

解决方案

真正的解决办法...如果想从一个System.Windows.Control.Image保存JPG图片时，你的ORM数据库映射的字段是字节[] /字节[] / Bynary

 字节公众[] getJPGFromImageControl（BitmapImage的imageC）
{
       MemoryStream的memStream =新的MemoryStream（）;
        JpegBitmapEn codeR EN codeR =新JpegBitmapEn codeR（）;
        EN coder.Frames.Add（BitmapFrame.Create（imageC））;
        EN coder.Save（memStream）;
        返回memStream.ToArray（）;
}
 

电话为：

  getJPGFromImageControl（firmaUno.Source为BitmapImage的）
 

的希望帮助：）

I'm trying to convert from System.Windows.Controls.Image to byte[] and I didnt know which method from Image class could help in this scenary, by the way I really dont know what should I do, cause in my LINQ model the field appears as Binary type, I have to change this if I want to save it like a byte[] type?

I found code posted here, but without using WPF:

Bitmap newBMP = new Bitmap(originalBMP, newWidth, newHeight);
System.IO.MemoryStream stream = new System.IO.MemoryStream();
newBMP.Save(stream, System.Drawing.Imaging.ImageFormat.Bmp);
PHJProjectPhoto myPhoto = new PHJProjectPhoto {
    ProjectPhoto = stream.ToArray(), // <<--- This will convert your stream to a byte[] 
    OrderDate = DateTime.Now, 
    ProjectPhotoCaption = ProjectPhotoCaptionTextBox.Text,
    ProjectId = selectedProjectId
};

解决方案

Real Solution... if want to save jpg images from an System.Windows.Control.Image when your database mapped field on your ORM is Byte[] / byte[] / Bynary

public byte[] getJPGFromImageControl(BitmapImage imageC)
{
       MemoryStream memStream = new MemoryStream();              
        JpegBitmapEncoder encoder = new JpegBitmapEncoder();
        encoder.Frames.Add(BitmapFrame.Create(imageC));
        encoder.Save(memStream);
        return memStream.ToArray();
}

call as :

getJPGFromImageControl(firmaUno.Source as BitmapImage)

Hopes helps :)

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