Sending image in non asp.net app.

[calumb]

I have a class library where I need to send emails with images.

I get the following error when using @Html.EmbedImage. I'm using the MultiPart example but in a class library.

Unable to compile template. The name 'Html' does not exist in the current context.

Is this possible?

[hellfirehd]

I hate to simply say "Me too" but I have exactly the same problem.

[hellfirehd]

I've been looking into this. and isn't anything to do with postal. The fact is that RazorEngine (upon which postal relies) has no notion of the HtmlHelper which all the extension methods hang off of. When it renders a template, the template inherits from an base class provided by RazorEngine which does not have a Html member.

The workaround is to simply create an new class that inherits from Postal.Email and then implement your helpers on it or as extension methods to it.

[NightOwl888]

Actually, this sounds like the same problem I had when trying to create database driven views. I managed to work it out though - it is because when compiling the view outside of the context of the Views folder, the main Web.config is used (as opposed to the one in the Views folder) and the namespaces required for the @html and other objects are not included in the main Web.config.

To fix the problem, you need to add the following config sections to your ROOT web.config:

<configSections>
    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
    </sectionGroup>
  </configSections>
  <system.web.webPages.razor>
    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    <pages pageBaseType="System.Web.Mvc.WebViewPage">
      <namespaces>
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Routing" />
      </namespaces>
    </pages>
  </system.web.webPages.razor>
  <appSettings>
    <add key="webpages:Enabled" value="true" />
  </appSettings>

See this link for more details if you need them: http://forums.asp.net/t/1705855.aspx/1

[JerryDoubleU]

I have also spent some hours trying to get around this issue.

Mine solution was as follows (pseudo C# code):
Attachment someImageAttachment = new Attachment(imagePath);
emailModel.SomeImageContentId = someImageAttachment.ContentId;
email.Attach(someImageAttachment);

in Email.cshtml:
<img src="cid:@Model.SomeImageContentId" alt="SomeImage" />

Works perfectly in every e-mail client I have tested and the image is not visible as an attachment, which makes this solution even more awesome ;)

Hope it helps you and saves you lots of time :)

[mattkoch614]

@JerryDoubleU Thank you! This worked for me :)

[vip32]

@JerryDoubleU Wow, that is a nice workaround!

[tanis2000]

@JerryDoubleU that worked fine. Awesome workaround! Thanks!

[jrz22]

@JerryDoubleU Thanks for posting!

[jeniferdeveloper]

@JerryDoubleU Thanks, is Work ...

have also spent some hours trying to get around this issue.

Mine solution was as follows (pseudo C# code):
Attachment someImageAttachment = new Attachment(imagePath);
emailModel.SomeImageContentId = someImageAttachment.ContentId;
email.Attach(someImageAttachment);

in Email.cshtml:

Works perfectly in every e-mail client I have tested and the image is not visible as an attachment, which makes this solution even more awesome ;)

Hope it helps you and saves you lots of time :)