Mailkit TextPart IsHtml Content type check does not work

Question

Dear Friends,

 TextPart textPart = new TextPart();
    textPart.Text = body; // body contains the html text.
    if(textPart.IsHtml)
    {
    }else { }

text part IsHtml is not giving me the correct result. I know my body text contains HTML but still, it goes in else condition.

Then I look into this conversation but when I wrote it. It gives error on ContentType. char does not contain the information of contentType.

 var bodyii = textPart.Text.FirstOrDefault(x => x.ContentType.IsMimeType("text", "html"));

Can anyone point out what I am doing wrong?

Answer 1

textPart.IsHtml doesn't examine the textPart.Text to see if it contains html tags, it examines the textPart.ContentType to see if it matches text/html. When you create a TextPart using the default constructor, it creates text/plain, not text/html.

You need to use:

TextPart textPart = new TextPart ("html");

The following code of yours:

var bodyii = textPart.Text.FirstOrDefault(x => x.ContentType.IsMimeType("text", "html"));

gets an error because textPart.Text is a string, which means your LINQ expression operates on char elements and a char does not have a ContentType property.

In other words, if you do:

textPart.Text = "This is some text.";

Then your LINQ expression, translated to more simplistic C# code using a forewach loop would look like this:

char bodyii = 0;
foreach (char x in textPart.Text)
{
    if (x.ContentType.IsMimeType("text", "html"))
    {
        bodyii = x;
        break;
    }
}

Does that code make sense to you? It shouldn't which is why the compiler is giving you an error.