Easy solution for restricting text to MAXLENGTH in a multiline textbox, using Ajax MaskedEdit extender.
To get the effect of Maxlength=50, just attach the MaskedEdit extender to the multiline textbox and set the Mask value to ?{50}.
Following example shows a 'Maxlength' of 300.
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Remarks") %>' Width="700px" TextMode="MultiLine"></asp:TextBox>
<cc1:MaskedEditExtender ID="MaskedEditExtender1" runat="server" Mask="?{300}" PromptCharacter="" TargetControlID="TextBox1">
</cc1:MaskedEditExtender>
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2 comments:
When I first read your solution I thought it was great. Unfortunately, after trying it, I realised it was't as good as it seemed. The problem is you can overwrite already typed text, while a proper length-limiting solution shouldn't let you do so unless you first delete some text.
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