改变SRC属性< IMG> [英] changing src attributes <img>

问题描述

我要解析的邮件的HTML，得到所有的img标签，并与我想要的图像的URL替换src值。

这部分已经完成。我可以访问< IMG> 和更改与我想要的网址的属性。

的问题是，当我打印的HTML中的src等于 CID：CompanyLogo的，它应该是完整的URL图像的我给。

我需要知道如何的<在src值之后加载HTML; IMG> 原HTML被改变。下面的代码作为参数接收电子邮件的原始HTML在一个字符串，它是身体

 字符串SRC = ; 
 INT指数之= 0; 
 //Console.WriteLine(body）; 
 
的HTMLDocument电子邮件=新的HTMLDocument（）; 
 email.LoadHtml（体）; 
 
的foreach（HtmlNode IMG在email.DocumentNode.SelectNodes（// IMG））
 {
 SRC = img.GetAttributeValue（src用户，NULL）; 
的for（int i = 0; I< contentIDS.Count;我++）
 {
如果（SRC.Equals（CONTENTIDS [I]））
 {
指数之= I; 
中断; 
} 
} 
 
 img.SetAttributeValue（SRC，网址[指数之]的ToString（））; //改变SRC值
 Console.WriteLine（ URL+ img.GetAttributeValue（SRC，NULL））; //打印的我多么想
} 
 
体= item.Body; //我坚持在这里，我想身体有整体的html但在SRC上面所做的修改的最终值。 
收益主体; 
  

解决方案

当你在你的注释注意，<$ C 。$ C>项目您正在使用中也通过变量 - 但是，这是不是你操纵什么

而不是：

  =身体item.Body; 
  

您应该使用：

  =身体email.Body; 
  

更新：

既然你现在有。发现你正在使用的HAP，你可以简单地获取文档节点的内部HTML

未经测试的：

  =身体email.DocumentNode.InnerHtml; 
  

I have to parse the html of an email, get all the img tags and replace the src value with the url of the image I want.

This part is already done. I can access the <img> and change the attribute with the url I want.

The problem is that when I print the html the src equals cid:companylogo and it should be the full url of the image I gave.

I need to know how to load the html after the src values of the <img> in the original html are changed. The below code receives as a parameter the original html of the email in a string which is "body"

        string SRC = "";
        int indice = 0;
        //Console.WriteLine(body);

        HtmlDocument email = new HtmlDocument();
        email.LoadHtml(body);

        foreach (HtmlNode img in email.DocumentNode.SelectNodes("//img"))
        {
            SRC = img.GetAttributeValue("src", null);
            for (int i = 0; i < contentIDS.Count; i++)
            {
                if (SRC.Equals(contentIDS[i]))
                {
                    indice = i;
                    break;
                }
            }

            img.SetAttributeValue("src", urls[indice].ToString());//change src value
            Console.WriteLine("URL" + img.GetAttributeValue("src", null));//its printed how i want to
        }

        body = item.Body;//am stuck here i want body to have a final value of the whole html but with the changes made in src above.
        return body;

解决方案

As you note in your comments, the item variable you are using is also passed in - however, this isn't what you are manipulating.

Instead of:

body = item.Body;

You should use:

body = email.Body;

Update:

Since you have now revealed you are using the HAP, you can simply get the inner HTML of the document node.

Untested:

body = email.DocumentNode.InnerHtml;

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