allowing user to type html tags inside html textarea

I have a html textarea on my page in my ASP.NET Web Forms application.

If a user types some html code like this inside my textarea


When i run my page it causes an error.

I read this article:

So then,
if I add these 2 lines of code inside the <system.web> tags, that fixes the issue and I no longer get an error , the textarea accepts the html tags ok.


        <httpRuntime requestValidationMode="2.0" />
        <pages validateRequest="false" />


Is there a better way to allow a user to type html tags inside my textarea without having to add those 2 lines inside my Web.Config of my application ?
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zephyr_hex (Megan)DeveloperCommented:
You may want to consider the security implications of allowing HTML tags in a form element (input, textarea, etc)
Shaun VermaakTechnical Specialist/DeveloperCommented:
And if you do, you should HTML encode the text from that textarea before saving/using it

You can use a plugin like TinyMce

With this editor you can have HTML template.
I'm using it with Raw option and it's also have a html code option (in Format list).
You can create a list of span so the user can select one.
This is useful to allow user to select Bootstrap component for example.

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