I have a simple aspx page through which i am entering Text into a textbox the text are coming though texteditor so the text are with html tags.

Such as `<p>My name</p>`

the error which i am getting is like:

```
Server Error '/' Application 
A potentially dangerous Request.Form value was detected from the client (ctl00$ctl00$ContentPlaceHolder1$ContentPlaceHolder2$TxtTopicName="<p>kdarftghjh</p>").

```

What type of error is this and how could i resolve such error.Thanks for any assistance.