when i click a button than message is
A potentially dangerous Request.Form value was detected from the client (Txt_Editor="<br />
<div fi...").
Description: HTTP 500. Error processing request.
Stack Trace:
System.Web.HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (Txt_Editor="<br />
<div fi...").
at System.Web.HttpRequest.ThrowValidationException (System.String name, System.String key, System.String value) [0x00000] in <filename unknown>:0
at System.Web.HttpRequest.ValidateNameValueCollection (System.String name, System.Collections.Specialized.NameValueCollection coll) [0x00000] in <filename unknown>:0
at System.Web.HttpRequest.get_Form () [0x00000] in <filename unknown>:0
at System.Web.UI.Page.DeterminePostBackMode () [0x00000] in <filename unknown>:0
a ...
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