blocks|key|38304|text|您需要将LinkedResource添加到AlternateView中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|38305|AlternateView+alternateView+=+AlternateView.CreateAlternateViewFromString("<h3>Client:+"+%2B+data.client_id+%2B+"+Has+Sent+You+A+Screenshot</h3>"+%2B
++++++++++++++++@"<img+src=""cid:{0}""+/>",+null,+"text/html");
alternateView.LinkedResources.Add(inline);
mail.AlternateViews.Add(alternateView);|code-block|syntax|javascript|38306|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>You need to add the LinkedResource into an AlternateView</p>

<pre><code>AlternateView alternateView = AlternateView.CreateAlternateViewFromString("&lt;h3&gt;Client: " + data.client_id + " Has Sent You A Screenshot&lt;/h3&gt;" +
                @"&lt;img src=""cid:{0}"" /&gt;", null, "text/html");
alternateView.LinkedResources.Add(inline);
mail.AlternateViews.Add(alternateView);
</code></pre>


blocks|key|38313|text|尝尝这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|38314|+string+htmlBody+=+"<html><body><h1>Picture</h1><br><img+src=\"cid:filename\"></body></html>";
+AlternateView+avHtml+=+AlternateView.CreateAlternateViewFromString
++++(htmlBody,+null,+MediaTypeNames.Text.Html);

+LinkedResource+inline+=+new+LinkedResource("filename.jpg",+MediaTypeNames.Image.Jpeg);
+inline.ContentId+=+Guid.NewGuid().ToString();
+avHtml.LinkedResources.Add(inline);

+MailMessage+mail+=+new+MailMessage();
+mail.AlternateViews.Add(avHtml);

+Attachment+att+=+new+Attachment(filePath);
+att.ContentDisposition.Inline+=+true;

+mail.From+=+from_email;
+mail.To.Add(data.email);
+mail.Subject+=+"Client:+"+%2B+data.client_id+%2B+"+Has+Sent+You+A+Screenshot";
+mail.Body+=+String.Format(
++++++++++++"<h3>Client:+"+%2B+data.client_id+%2B+"+Has+Sent+You+A+Screenshot</h3>"+%2B
++++++++++++@"<img+src=""cid:{0}""+/>",+att.ContentId);

+mail.IsBodyHtml+=+true;
+mail.Attachments.Add(att);|code-block|syntax|javascript|38315|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>Try this</p>

<pre><code> string htmlBody = "&lt;html&gt;&lt;body&gt;&lt;h1&gt;Picture&lt;/h1&gt;&lt;br&gt;&lt;img src=\"cid:filename\"&gt;&lt;/body&gt;&lt;/html&gt;";
 AlternateView avHtml = AlternateView.CreateAlternateViewFromString
    (htmlBody, null, MediaTypeNames.Text.Html);

 LinkedResource inline = new LinkedResource("filename.jpg", MediaTypeNames.Image.Jpeg);
 inline.ContentId = Guid.NewGuid().ToString();
 avHtml.LinkedResources.Add(inline);

 MailMessage mail = new MailMessage();
 mail.AlternateViews.Add(avHtml);

 Attachment att = new Attachment(filePath);
 att.ContentDisposition.Inline = true;

 mail.From = from_email;
 mail.To.Add(data.email);
 mail.Subject = "Client: " + data.client_id + " Has Sent You A Screenshot";
 mail.Body = String.Format(
            "&lt;h3&gt;Client: " + data.client_id + " Has Sent You A Screenshot&lt;/h3&gt;" +
            @"&lt;img src=""cid:{0}"" /&gt;", att.ContentId);

 mail.IsBodyHtml = true;
 mail.Attachments.Add(att);
</code></pre>


blocks|key|38322|text|++++protected+void+Page_Load(object+sender,+EventArgs+e)
++++{
++++++++string+Themessage+=+@"<html>
++++++++++++++++++++++++++<body>
++++++++++++++++++++++++++++<table+width=""100%25"">
++++++++++++++++++++++++++++<tr>
++++++++++++++++++++++++++++++++<td+style=""font-style:arial;+color:maroon;+font-weight:bold"">
+++++++++++++++++++++++++++++++Hi!+<br>
++++++++++++++++++++++++++++++++<img+src=cid:myImageID>
++++++++++++++++++++++++++++++++</td>
++++++++++++++++++++++++++++</tr>
++++++++++++++++++++++++++++</table>
++++++++++++++++++++++++++++</body>
++++++++++++++++++++++++++++</html>";
++++++++sendHtmlEmail("from@gmail.com",+"tomailaccount",+Themessage,+"Scoutfoto",+"Test+HTML+Email",+"smtp.gmail.com",+25);
++++}

++++protected+void+sendHtmlEmail(string+from_Email,+string+to_Email,+string+body,+string+++++++++++from_Name,+string+Subject,+string+SMTP_IP,+Int32+SMTP_Server_Port)
++++{
++++++++//create+an+instance+of+new+mail+message
++++++++MailMessage+mail+=+new+MailMessage();

++++++++//set+the+HTML+format+to+true
++++++++mail.IsBodyHtml+=+true;

++++++++//create+Alrternative+HTML+view
++++++++AlternateView+htmlView+=+AlternateView.CreateAlternateViewFromString(body,+null,+"text/html");

++++++++//Add+Image
++++++++LinkedResource+theEmailImage+=+new+LinkedResource("E:\\IMG_3332.jpg");
++++++++theEmailImage.ContentId+=+"myImageID";

++++++++//Add+the+Image+to+the+Alternate+view
++++++++htmlView.LinkedResources.Add(theEmailImage);

++++++++//Add+view+to+the+Email+Message
++++++++mail.AlternateViews.Add(htmlView);

++++++++//set+the+"from+email"+address+and+specify+a+friendly+'from'+name
++++++++mail.From+=+new+MailAddress(from_Email,+from_Name);

++++++++//set+the+"to"+email+address
++++++++mail.To.Add(to_Email);

++++++++//set+the+Email+subject
++++++++mail.Subject+=+Subject;

++++++++//set+the+SMTP+info
++++++++System.Net.NetworkCredential+cred+=+new+System.Net.NetworkCredential("fromEmail@gmail.com",+"fromEmail+password");
++++++++SmtpClient+smtp+=+new+SmtpClient("smtp.gmail.com",+587);
++++++++smtp.EnableSsl+=+true;
++++++++smtp.DeliveryMethod+=+SmtpDeliveryMethod.Network;
++++++++smtp.UseDefaultCredentials+=+false;
++++++++smtp.Credentials+=+cred;
++++++++//send+the+email
++++++++smtp.Send(mail);
++++}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|38323|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>    protected void Page_Load(object sender, EventArgs e)
    {
        string Themessage = @"&lt;html&gt;
                          &lt;body&gt;
                            &lt;table width=""100%""&gt;
                            &lt;tr&gt;
                                &lt;td style=""font-style:arial; color:maroon; font-weight:bold""&gt;
                               Hi! &lt;br&gt;
                                &lt;img src=cid:myImageID&gt;
                                &lt;/td&gt;
                            &lt;/tr&gt;
                            &lt;/table&gt;
                            &lt;/body&gt;
                            &lt;/html&gt;";
        sendHtmlEmail("from@gmail.com", "tomailaccount", Themessage, "Scoutfoto", "Test HTML Email", "smtp.gmail.com", 25);
    }

    protected void sendHtmlEmail(string from_Email, string to_Email, string body, string           from_Name, string Subject, string SMTP_IP, Int32 SMTP_Server_Port)
    {
        //create an instance of new mail message
        MailMessage mail = new MailMessage();

        //set the HTML format to true
        mail.IsBodyHtml = true;

        //create Alrternative HTML view
        AlternateView htmlView = AlternateView.CreateAlternateViewFromString(body, null, "text/html");

        //Add Image
        LinkedResource theEmailImage = new LinkedResource("E:\\IMG_3332.jpg");
        theEmailImage.ContentId = "myImageID";

        //Add the Image to the Alternate view
        htmlView.LinkedResources.Add(theEmailImage);

        //Add view to the Email Message
        mail.AlternateViews.Add(htmlView);

        //set the "from email" address and specify a friendly 'from' name
        mail.From = new MailAddress(from_Email, from_Name);

        //set the "to" email address
        mail.To.Add(to_Email);

        //set the Email subject
        mail.Subject = Subject;

        //set the SMTP info
        System.Net.NetworkCredential cred = new System.Net.NetworkCredential("fromEmail@gmail.com", "fromEmail password");
        SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
        smtp.EnableSsl = true;
        smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
        smtp.UseDefaultCredentials = false;
        smtp.Credentials = cred;
        //send the email
        smtp.Send(mail);
    }
</code></pre>


blocks|key|255038|text|++++MailMessage+mail+=+new+MailMessage();
++++//set+the+addresses
++++mail.From+=+new+MailAddress("userid@gmail.com");
++++mail.To.Add("userid@gmail.com");

++++//set+the+content
++++mail.Subject+=+"Sucessfully+Sent+the+HTML+and+Content+of+mail";

++++//first+we+create+the+Plain+Text+part
++++string+plainText+=+"Non-HTML+Plain+Text+Message+for+Non-HTML+enable+mode";
++++AlternateView+plainView+=+AlternateView.CreateAlternateViewFromString(plainText,+null,+"text/plain");
++++XmlTextReader+reader+=+new+XmlTextReader(@"E:\HTMLPage.htm");
++++string[]+address+=+new+string[30];
++++string+finalHtml+=+"";
++++var+i+=+-1;
++++while+(reader.Read())
++++{
++++++++if+(reader.NodeType+==+XmlNodeType.Element)
++++++++{+//+The+node+is+an+element.
++++++++++++if+(reader.AttributeCount+<=+1)
++++++++++++{
++++++++++++++++if+(reader.Name+==+"img")
++++++++++++++++{
++++++++++++++++++++finalHtml+%2B=+"<"+%2B+reader.Name;
++++++++++++++++++++while+(reader.MoveToNextAttribute())
++++++++++++++++++++{
++++++++++++++++++++++++if+(reader.Name+==+"src")
++++++++++++++++++++++++{
++++++++++++++++++++++++++++i%2B%2B;
++++++++++++++++++++++++++++address[i]+=+reader.Value;
++++++++++++++++++++++++++++address[i]+=+address[i].Remove(0,+8);
++++++++++++++++++++++++++++finalHtml+%2B=+"+"+%2B+reader.Name+%2B+"="+%2B+"cid:chartlogo"+%2B+i.ToString();
++++++++++++++++++++++++}
++++++++++++++++++++++++else
++++++++++++++++++++++++{
++++++++++++++++++++++++++++finalHtml+%2B=+"+"+%2B+reader.Name+%2B+"='"+%2B+reader.Value+%2B+"'";
++++++++++++++++++++++++}
++++++++++++++++++++}
++++++++++++++++++++finalHtml+%2B=+">";
++++++++++++++++}
++++++++++++++++else
++++++++++++++++{
++++++++++++++++++++finalHtml+%2B=+"<"+%2B+reader.Name;
++++++++++++++++++++while+(reader.MoveToNextAttribute())
++++++++++++++++++++{
++++++++++++++++++++++++finalHtml+%2B=+"+"+%2B+reader.Name+%2B+"='"+%2B+reader.Value+%2B+"'";
++++++++++++++++++++}
++++++++++++++++++++finalHtml+%2B=+">";
++++++++++++++++}
++++++++++++}

++++++++}
++++++++else+if+(reader.NodeType+==+XmlNodeType.Text)
++++++++{+//Display+the+text+in+each+element.
++++++++++++finalHtml+%2B=+reader.Value;
++++++++}
++++++++else+if+(reader.NodeType+==+XmlNodeType.EndElement)
++++++++{
++++++++++++//Display+the+end+of+the+element.
++++++++++++finalHtml+%2B=+"</"+%2B+reader.Name;
++++++++++++finalHtml+%2B=+">";
++++++++}

++++}

++++AlternateView+htmlView+=+AlternateView.CreateAlternateViewFromString(finalHtml,+null,+"text/html");
++++LinkedResource[]+logo+=+new+LinkedResource[i+%2B+1];
++++for+(int+j+=+0;+j+<=+i;+j%2B%2B)
++++{
++++++++logo[j]+=+new+LinkedResource(address[j]);
++++++++logo[j].ContentId+=+"chartlogo"+%2B+j;
++++++++htmlView.LinkedResources.Add(logo[j]);
++++}
++++mail.AlternateViews.Add(plainView);
++++mail.AlternateViews.Add(htmlView);
++++SmtpClient+smtp+=+new+SmtpClient();
++++smtp.Host+=+"smtp.gmail.com";
++++smtp.Port+=+587;
++++smtp.Credentials+=+new+NetworkCredential(
++++++++"userid@gmail.com",+"Password");
++++smtp.EnableSsl+=+true;
++++Console.WriteLine();
++++smtp.Send(mail);
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|255039|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>    MailMessage mail = new MailMessage();
    //set the addresses
    mail.From = new MailAddress("userid@gmail.com");
    mail.To.Add("userid@gmail.com");

    //set the content
    mail.Subject = "Sucessfully Sent the HTML and Content of mail";

    //first we create the Plain Text part
    string plainText = "Non-HTML Plain Text Message for Non-HTML enable mode";
    AlternateView plainView = AlternateView.CreateAlternateViewFromString(plainText, null, "text/plain");
    XmlTextReader reader = new XmlTextReader(@"E:\HTMLPage.htm");
    string[] address = new string[30];
    string finalHtml = "";
    var i = -1;
    while (reader.Read())
    {
        if (reader.NodeType == XmlNodeType.Element)
        { // The node is an element.
            if (reader.AttributeCount &lt;= 1)
            {
                if (reader.Name == "img")
                {
                    finalHtml += "&lt;" + reader.Name;
                    while (reader.MoveToNextAttribute())
                    {
                        if (reader.Name == "src")
                        {
                            i++;
                            address[i] = reader.Value;
                            address[i] = address[i].Remove(0, 8);
                            finalHtml += " " + reader.Name + "=" + "cid:chartlogo" + i.ToString();
                        }
                        else
                        {
                            finalHtml += " " + reader.Name + "='" + reader.Value + "'";
                        }
                    }
                    finalHtml += "&gt;";
                }
                else
                {
                    finalHtml += "&lt;" + reader.Name;
                    while (reader.MoveToNextAttribute())
                    {
                        finalHtml += " " + reader.Name + "='" + reader.Value + "'";
                    }
                    finalHtml += "&gt;";
                }
            }

        }
        else if (reader.NodeType == XmlNodeType.Text)
        { //Display the text in each element.
            finalHtml += reader.Value;
        }
        else if (reader.NodeType == XmlNodeType.EndElement)
        {
            //Display the end of the element.
            finalHtml += "&lt;/" + reader.Name;
            finalHtml += "&gt;";
        }

    }

    AlternateView htmlView = AlternateView.CreateAlternateViewFromString(finalHtml, null, "text/html");
    LinkedResource[] logo = new LinkedResource[i + 1];
    for (int j = 0; j &lt;= i; j++)
    {
        logo[j] = new LinkedResource(address[j]);
        logo[j].ContentId = "chartlogo" + j;
        htmlView.LinkedResources.Add(logo[j]);
    }
    mail.AlternateViews.Add(plainView);
    mail.AlternateViews.Add(htmlView);
    SmtpClient smtp = new SmtpClient();
    smtp.Host = "smtp.gmail.com";
    smtp.Port = 587;
    smtp.Credentials = new NetworkCredential(
        "userid@gmail.com", "Password");
    smtp.EnableSsl = true;
    Console.WriteLine();
    smtp.Send(mail);
}
</code></pre>


blocks|key|38370|text|嵌入图像的一些最小c#代码可以是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|38371|MailMessage+mailWithImg+=+GetMailWithImg();
MySMTPClient.Send(mailWithImg);+//*+Set+up+your+SMTPClient+before!

private+MailMessage+GetMailWithImg()+{
++++MailMessage+mail+=+new+MailMessage();
++++mail.IsBodyHtml+=+true;
++++mail.AlternateViews.Add(GetEmbeddedImage("c:/image.png"));
++++mail.From+=+new+MailAddress("yourAddress@yourDomain");
++++mail.To.Add("recipient@hisDomain");
++++mail.Subject+=+"yourSubject";
++++return+mail;
}

private+AlternateView+GetEmbeddedImage(String+filePath)+{
++++LinkedResource+res+=+new+LinkedResource(filePath);
++++res.ContentId+=+Guid.NewGuid().ToString();
++++string+htmlBody+=+@"<img+src='cid:"+%2B+res.ContentId+%2B+@"'/>";
++++AlternateView+alternateView+=+AlternateView.CreateAlternateViewFromString(htmlBody,+null,+MediaTypeNames.Text.Html);
++++alternateView.LinkedResources.Add(res);
++++return+alternateView;
}|code-block|syntax|javascript|38372|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>Some minimal c# code to embed an image, can be:</p>
<pre><code>MailMessage mailWithImg = GetMailWithImg();
MySMTPClient.Send(mailWithImg); //* Set up your SMTPClient before!

private MailMessage GetMailWithImg() {
    MailMessage mail = new MailMessage();
    mail.IsBodyHtml = true;
    mail.AlternateViews.Add(GetEmbeddedImage(&quot;c:/image.png&quot;));
    mail.From = new MailAddress(&quot;yourAddress@yourDomain&quot;);
    mail.To.Add(&quot;recipient@hisDomain&quot;);
    mail.Subject = &quot;yourSubject&quot;;
    return mail;
}

private AlternateView GetEmbeddedImage(String filePath) {
    LinkedResource res = new LinkedResource(filePath);
    res.ContentId = Guid.NewGuid().ToString();
    string htmlBody = @&quot;&lt;img src='cid:&quot; + res.ContentId + @&quot;'/&gt;&quot;;
    AlternateView alternateView = AlternateView.CreateAlternateViewFromString(htmlBody, null, MediaTypeNames.Text.Html);
    alternateView.LinkedResources.Add(res);
    return alternateView;
}
</code></pre>


blocks|key|255099|text|另一种解决方案是将图像作为附件附加，然后使用cid引用它的html代码。HTML代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|255100|<html>
<head>
</head>
<body>
++++<img+width=100+height=100+id=""1""+src=""cid:Logo.jpg"">
</body>
</html>|code-block|syntax|javascript|255101|C#代码：|255102|EmailMessage+email+=+new+EmailMessage(service);
email.Subject+=+"Email+with+Image";
email.Body+=+new+MessageBody(BodyType.HTML,+html);
email.ToRecipients.Add("abc@xyz.com");
string+file+=+@"C:\Users\acv\Pictures\Logo.jpg";
email.Attachments.AddFileAttachment("Logo.jpg",+file);
email.Attachments[0].IsInline+=+true;
email.Attachments[0].ContentId+=+"Logo.jpg";
email.SendAndSaveCopy();|255103|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<p>The other solution is attaching the image as attachment and then referencing it html code using cid.
HTML Code:</p>

<pre><code>&lt;html&gt;
&lt;head&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;img width=100 height=100 id=""1"" src=""cid:Logo.jpg""&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>

<p>C# Code:</p>

<pre><code>EmailMessage email = new EmailMessage(service);
email.Subject = "Email with Image";
email.Body = new MessageBody(BodyType.HTML, html);
email.ToRecipients.Add("abc@xyz.com");
string file = @"C:\Users\acv\Pictures\Logo.jpg";
email.Attachments.AddFileAttachment("Logo.jpg", file);
email.Attachments[0].IsInline = true;
email.Attachments[0].ContentId = "Logo.jpg";
email.SendAndSaveCopy();
</code></pre>


blocks|key|38416|text|一个更简约的例子：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|38417|var+linkedResource+=+new+LinkedResource(@"C:\Image.jpg",+MediaTypeNames.Image.Jpeg);

//+My+mail+provider+would+not+accept+an+email+with+only+an+image,+adding+hello+so+that+the+content+looks+less+suspicious.
var+htmlBody+=+$"hello<img+src=\"cid:{linkedResource.ContentId}\"/>";
var+alternateView+=+AlternateView.CreateAlternateViewFromString(htmlBody,+null,+MediaTypeNames.Text.Html);
alternateView.LinkedResources.Add(linkedResource);

var+mailMessage+=+new+MailMessage
{
++++From+=+new+MailAddress("youremail@host.com"),
++++To+=+{+"recipient@host.com"+},
++++Subject+=+"yourSubject",
++++AlternateViews+=+{+alternateView+}
};

var+smtpClient+=+new+SmtpClient();
smtpClient.Send(mailMessage);|code-block|syntax|javascript|38418|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>An even more minimalistic example:</p>

<pre><code>var linkedResource = new LinkedResource(@"C:\Image.jpg", MediaTypeNames.Image.Jpeg);

// My mail provider would not accept an email with only an image, adding hello so that the content looks less suspicious.
var htmlBody = $"hello&lt;img src=\"cid:{linkedResource.ContentId}\"/&gt;";
var alternateView = AlternateView.CreateAlternateViewFromString(htmlBody, null, MediaTypeNames.Text.Html);
alternateView.LinkedResources.Add(linkedResource);

var mailMessage = new MailMessage
{
    From = new MailAddress("youremail@host.com"),
    To = { "recipient@host.com" },
    Subject = "yourSubject",
    AlternateViews = { alternateView }
};

var smtpClient = new SmtpClient();
smtpClient.Send(mailMessage);
</code></pre>


blocks|key|38432|text|我们都有自己喜欢的编码风格。这是我所做的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|38433|var+pictures+=+new[]
{
++++new+{+id+=+Guid.NewGuid(),+type+=+"image/jpeg",+tag+=+"justme",+path+=+@"C:\Pictures\JustMe.jpg"+},
++++new+{+id+=+Guid.NewGuid(),+type+=+"image/jpeg",+tag+=+"justme-bw",+path+=+@"C:\Pictures\JustMe-BW.jpg"+}
}.ToList();

var+content+=+$@"
<style+type=""text/css"">
++++body+{{+font-family:+Arial;+font-size:+10pt;+}}
</style>
<body>
<h4>{DateTime.Now:dddd,+MMMM+d,+yyyy+h:mm:ss+tt}</h4>
<p>Some+pictures</p>
<div>
++++<p>Color+Picture</p>
++++<img+src=cid:{{justme}}+/>
</div>
<div>
++++<p>Black+and+White+Picture</p>
++++<img+src=cid:{{justme-bw}}+/>
</div>
<div>
++++<p>Color+Picture+repeated</p>
++++<img+src=cid:{{justme}}+/>
</div>
</body>
";

//+Update+content+with+picture+guid
pictures.ForEach(p+=>+content+=+content.Replace($"{{{p.tag}}}",+$"{p.id}"));
//+Create+Alternate+View
var+view+=+AlternateView.CreateAlternateViewFromString(content,+Encoding.UTF8,+MediaTypeNames.Text.Html);
//+Add+the+resources
pictures.ForEach(p+=>+view.LinkedResources.Add(new+LinkedResource(p.path,+p.type)+{+ContentId+=+p.id.ToString()+}));

using+(var+client+=+new+SmtpClient())+//+Set+properties+as+needed+or+use+config+file
using+(MailMessage+message+=+new+MailMessage()
{
++++IsBodyHtml+=+true,
++++BodyEncoding+=+Encoding.UTF8,
++++Subject+=+"Picture+Email",
++++SubjectEncoding+=+Encoding.UTF8,
})
{
++++message.AlternateViews.Add(view);
++++message.From+=+new+MailAddress("me@me.com");
++++message.To.Add(new+MailAddress("you@you.com"));
++++client.Send(message);
}|code-block|syntax|javascript|38434|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>We all have our preferred coding styles. This is what I did:</p>

<pre><code>var pictures = new[]
{
    new { id = Guid.NewGuid(), type = "image/jpeg", tag = "justme", path = @"C:\Pictures\JustMe.jpg" },
    new { id = Guid.NewGuid(), type = "image/jpeg", tag = "justme-bw", path = @"C:\Pictures\JustMe-BW.jpg" }
}.ToList();

var content = $@"
&lt;style type=""text/css""&gt;
    body {{ font-family: Arial; font-size: 10pt; }}
&lt;/style&gt;
&lt;body&gt;
&lt;h4&gt;{DateTime.Now:dddd, MMMM d, yyyy h:mm:ss tt}&lt;/h4&gt;
&lt;p&gt;Some pictures&lt;/p&gt;
&lt;div&gt;
    &lt;p&gt;Color Picture&lt;/p&gt;
    &lt;img src=cid:{{justme}} /&gt;
&lt;/div&gt;
&lt;div&gt;
    &lt;p&gt;Black and White Picture&lt;/p&gt;
    &lt;img src=cid:{{justme-bw}} /&gt;
&lt;/div&gt;
&lt;div&gt;
    &lt;p&gt;Color Picture repeated&lt;/p&gt;
    &lt;img src=cid:{{justme}} /&gt;
&lt;/div&gt;
&lt;/body&gt;
";

// Update content with picture guid
pictures.ForEach(p =&gt; content = content.Replace($"{{{p.tag}}}", $"{p.id}"));
// Create Alternate View
var view = AlternateView.CreateAlternateViewFromString(content, Encoding.UTF8, MediaTypeNames.Text.Html);
// Add the resources
pictures.ForEach(p =&gt; view.LinkedResources.Add(new LinkedResource(p.path, p.type) { ContentId = p.id.ToString() }));

using (var client = new SmtpClient()) // Set properties as needed or use config file
using (MailMessage message = new MailMessage()
{
    IsBodyHtml = true,
    BodyEncoding = Encoding.UTF8,
    Subject = "Picture Email",
    SubjectEncoding = Encoding.UTF8,
})
{
    message.AlternateViews.Add(view);
    message.From = new MailAddress("me@me.com");
    message.To.Add(new MailAddress("you@you.com"));
    client.Send(message);
}
</code></pre>


blocks|key|255148|text|我添加了下面的完整代码，以便在Gmail、Thunderbird和其他电子邮件客户端中显示图像：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|255149|MailMessage+mailWithImg+=+getMailWithImg();
MySMTPClient.Send(mailWithImg);+//*+Set+up+your+SMTPClient+before!

private+MailMessage+getMailWithImg()
{
++++MailMessage+mail+=+new+MailMessage();
++++mail.IsBodyHtml+=+true;
++++mail.AlternateViews.Add(getEmbeddedImage("c:/image.png"));
++++mail.From+=+new+MailAddress("yourAddress@yourDomain");
++++mail.To.Add("recipient@hisDomain");
++++mail.Subject+=+"yourSubject";
++++return+mail;
}
private+AlternateView+getEmbeddedImage(String+filePath)
+{
++++//+below+line+was+corrected+to+include+the+mediatype+so+it+displays+in+all+
++++//+mail+clients.+previous+solution+only+displays+in+Gmail+the+inline+images+
++++LinkedResource+res+=+new+LinkedResource(filePath,+MediaTypeNames.Image.Jpeg);++
++++res.ContentId+=+Guid.NewGuid().ToString();
++++string+htmlBody+=+@"<img+src='cid:"+%2B+res.ContentId+%2B+@"'/>";
++++AlternateView+alternateView+=+AlternateView.CreateAlternateViewFromString(htmlBody,++
+++++null,+MediaTypeNames.Text.Html);
++++alternateView.LinkedResources.Add(res);
++++return+alternateView;
}|code-block|syntax|javascript|255150|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<p>I added the complete code below to display images in Gmail,Thunderbird and other email clients : </p>

<pre><code>MailMessage mailWithImg = getMailWithImg();
MySMTPClient.Send(mailWithImg); //* Set up your SMTPClient before!

private MailMessage getMailWithImg()
{
    MailMessage mail = new MailMessage();
    mail.IsBodyHtml = true;
    mail.AlternateViews.Add(getEmbeddedImage("c:/image.png"));
    mail.From = new MailAddress("yourAddress@yourDomain");
    mail.To.Add("recipient@hisDomain");
    mail.Subject = "yourSubject";
    return mail;
}
private AlternateView getEmbeddedImage(String filePath)
 {
    // below line was corrected to include the mediatype so it displays in all 
    // mail clients. previous solution only displays in Gmail the inline images 
    LinkedResource res = new LinkedResource(filePath, MediaTypeNames.Image.Jpeg);  
    res.ContentId = Guid.NewGuid().ToString();
    string htmlBody = @"&lt;img src='cid:" + res.ContentId + @"'/&gt;";
    AlternateView alternateView = AlternateView.CreateAlternateViewFromString(htmlBody,  
     null, MediaTypeNames.Text.Html);
    alternateView.LinkedResources.Add(res);
    return alternateView;
}
</code></pre>


<p>Having an issue sending an image via email as an embedded image in the body.
The image file shows as an attachment which is ok but the inline image portion just shows as a red x.</p>

<p>Here is what I have so far</p>

<pre><code>LinkedResource inline = new LinkedResource(filePath);
inline.ContentId = Guid.NewGuid().ToString();
MailMessage mail = new MailMessage();
Attachment att = new Attachment(filePath);
att.ContentDisposition.Inline = true;
mail.From = from_email;
mail.To.Add(data.email);
mail.Subject = "Client: " + data.client_id + " Has Sent You A Screenshot";
mail.Body = String.Format(
    "&lt;h3&gt;Client: " + data.client_id + " Has Sent You A Screenshot&lt;/h3&gt;" +
    @"&lt;img src=""cid:{0}"" /&gt;", inline.ContentId);

mail.IsBodyHtml = true;
mail.Attachments.Add(att);
</code></pre>


Send inline image in email

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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通过电子邮件将图像作为嵌入在正文中的图像发送时出现问题。图像文件显示为附件，这是可以的，但内联图像部分仅显示为红色x。这是我到目前为止所掌握的LinkedResource inline = new LinkedResource(filePath);inline.ContentId = Guid.NewGuid().To...

问在电子邮件中发送内联图像
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