How to set the text max length in the ASPxMemo control

Question Comments

ClientInstanceName is missing from the ASPxMemo in the sample code. It should be:

 <dx:ASPxMemo ID="memo" runat="server" Height="71px" Width="170px" ClientInstanceName="memo">
<ClientSideEvents Init="memo_OnInit" KeyDown="memo_OnKeyDown" />

Besides lots of errors on this script, it will allow to type lowercase 'z' and numbers with the Numeric Pad even if maxLength has already been reached!!
I have changed it to somgething like:
     function memo_OnKeyDown(s, e) {
           if (s.GetText().length >= se.GetNumber())
               CorrectTextWithDelay();
           // Ctrl + V
           if (e.htmlEvent.keyCode === 86 && e.htmlEvent.ctrlKey)
               CorrectTextWithDelay();
       }

I've changed the script so the maxLength value does not get taken from the SpinEdit control, but from a variable. I've also make use of the s parameter to target the sender instead of using the ClientInstanceName value:

       var memoMaxLength = 1000;

       function memo_OnKeyDown(s, e) {
           if (s.GetText().length >= memoMaxLength)
               CorrectTextWithDelay(s);
           // Ctrl + V
           if (e.htmlEvent.keyCode === 86 && e.htmlEvent.ctrlKey)
               CorrectTextWithDelay(s);
       }

       function memo_OnInit(s, e) {
           var input = s.GetInputElement();
           if (ASPxClientUtils.opera)
               input.oncontextmenu = function () { return false; };
           else
               input.onpaste = function () { CorrectTextWithDelay(s); };
       }

       function CorrectTextWithDelay(s) {
           setTimeout(function () { s.SetText(s.GetText().substr(0, memoMaxLength)); }, 0);
       }