在HTML标记中使用System.Drawing.Image [英] Use a System.Drawing.Image in an HTML tag

问题描述

我有一个潜在的问题。我有一个图像存储在数据库中，然后在我的应用程序中使用C＃方法来获取该图像并将其存储在自定义类中，如下所示：

  public class MyImage 
 {
 public System.Drawing.Image myImageFromDB; 
 public string imageName; 
 public int imageNumberInCollection; 
} 
  

我的问题是：我可以/如何使用此图片类的HTML图像标签？我已经尝试了以下内容，但它只是返回一个带有红色X的框：

  // myImageFromDBCollection是MyImage列表对象
 foreach（var ind in myImagesFromDBCollection）
 {
 table + = String.Format（< image src = {0} />，ind.myImageFromDB）; 
} 
  

任何关于我在做什么的想法都是错误的？

$ b $我最终用Brads方法来解决这个问题（请参阅问题的评论）我最终创建了一个方法，它接受了一个System.Drawing。图像并将其转换为字节数组，然后对该字节数组进行编码以获取图像。代码如下所示：

  byte [] imgBytes = turnImageToByteArray（ind.ind.myImageFromDB）; 
 string imgString = Convert.ToBase64String（imgBytes）; 
 table + = String.Format（img src = \data：image / Bmp; base64，{0} \>，imgString）; 
 
 private byte [] turnImageToByteArray（System.Drawing.Image img）
 {
 MemoryStream ms = new MemoryStream（）; 
 img.Save（ms，System.Drawing.Imaging.ImageFormat.Bmp）; 
返回ms.ToArray（）; 
 
 $ / code> 

目前这适用于我的目的，非常感谢大家和他们的建议，总是每个人都来，并帮助:-)

I have a potentially easy question. I have an image stored in a database, I then used a C# method in my application that gets that image and stores it in a custom class that looks like this:

public class MyImage
{
 public System.Drawing.Image myImageFromDB;
 public string imageName;
 public int imageNumberInCollection;
}

My question is this: Can I/How can I use the image from this class in an HTML image tag? I have attempted the following but it just returns a box with a red X in it:

//myImageFromDBCollection is a list of MyImage objects
foreach(var ind in myImagesFromDBCollection)
{
  table += String.Format("<image src={0} />", ind.myImageFromDB);
}

Any ideas on what I am doing wrong?

解决方案

I ended up going with Brads Method of solving this (See the comment under the question) I ended up creating a method that takes in a System.Drawing.Image and converts it to a byte array then encode that byte array to get the image. The code looks like the following:

byte[] imgBytes = turnImageToByteArray(ind.ind.myImageFromDB);
string imgString = Convert.ToBase64String(imgBytes);
table += String.Format("img src=\"data:image/Bmp;base64,{0}\">", imgString);

private byte[] turnImageToByteArray(System.Drawing.Image img)
{
  MemoryStream ms = new MemoryStream();
  img.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
  return ms.ToArray();
}

Currently this works for my purposes so thank you to everyone and their suggestions, as always everyone comes though and helps :-)

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