I had used "FilteredTextBoxExtender" for every Textbox to disable script and sql injection.
There is a Textbox "Description/Address" in which I had used below "FilteredTextBoxExtender":
<cc1:FilteredTextBoxExtender ID="FilteredTextBoxExtender1" runat="server" FilterType="Numbers, UppercaseLetters, LowercaseLetters, Custom" ValidChars=".,?-&!@#+/\*%$()[]:;' " TargetControlID="TDescription" />
But whenever user inserts "single quote (unclosed)" and try to save it throws ERROR.
Also, I had mentioned "single quote" in ValidChars property then too its throwing error.
Also, Disabling insertion of "single quote" is not a proper implementation for fields like Description/Address.
How to solve it?
Please reply.