How to append (;) to a string in a autocomplete text box
<p>I have a autocomplete extender and have a list from which suggestions are given, I am allowing user to enter more than 1 value seperated by a semicolon (;). And do the string split </p>

<pre><code>string[] result =  txt_to.Text.Split(';');
</code></pre>

<p>after entering one value user has to enter ; so that he can enter the second value, How can I automatically enter a ; after every value is selected so that the user can just type the second value without entering ; </p>

<pre><code> &lt;asp:AutoCompleteExtender ID="AutoCompleteExtender1" runat="server" TargetControlID="txt_to"
                            MinimumPrefixLength="2" CompletionInterval="10" CompletionSetCount="3" EnableCaching="true"
                            FirstRowSelected="true" UseContextKey="True" ServiceMethod="GetCompletionList"
                            DelimiterCharacters=";" ShowOnlyCurrentWordInCompletionListItem="true" /&gt;
</code></pre>
