MarkupString cast is still encoding string-CodePudding

I've found numerous examples of how to use MarkupString and it's just not doing what it's supposed to.

In my blazor component I have:

            <small  @ref="HelpText">
                @(!string.IsNullOrWhiteSpace(Model.HelpText) ? (MarkupString)Model.HelpText : "Double-click here to add text")
            </small>

I have a simple model right now where I initialize HelpText to

"<b><i>This is a test</b></i>"

In my webpage I get that exact output displayed. (See attached picture).

CodePudding user response：

This is actually do to the vagaries of ?:. Somehow the MarkupString value is converted to object? and then to string again.

To be honest I was surprised your code compiles, the two branches of ?: must be 'assignment compatible', and MarkupString cannot be assigned to string.

You can do this:

<small  @ref="HelpText">
  @((MarkupString)(!string.IsNullOrWhiteSpace(ModelHelpText) ? ModelHelpText : "Double-click here to add text"))
</small>

but that is getting so ugly I would move it to the @code section.