Web Forms :: Way To Check/limit User For Email Body?
Aug 18, 2010
I've got a form that will be used to send an email from a site. I'm using regular expression validators to limit the input to only appropriate characters in all of the fields. There are two things I want to protect against with the body portion of the email, sql injection attacks and the user entering too much text. The body portion of the email is entered using a text box with text mode set to multi line.
What is the best way to prevent the user from entering too much text and to guard against characters I don't want? I assume a regular expression validator will be ok for this. Will there be performance issues with this? Will the regex validator work well enough for this situation? Is there a better way of doing this?
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<asp:textbox id="fromaddress" runat="server" /><br /><br />
The subject:
<asp:textbox id="textsubject" runat="server"/><br /><br />
Enter your message:<br />
<asp:textbox id="msg" runat="server" textmode="multiline" columns="35" rows="8"/><br />
<asp:button ID="Button1" text="Send" onclick="Button_Click" runat="server"/><br />
<asp:label id="answer" runat="server" /> </asp:Content>
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[CODE]..
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