asp:listview and refresh list after posting to SQL DB - asp.net

Question

I have created a listview based on the below data:
<div class="showJournals">
<asp:ListView ID="ListJournal" runat="server" DataSourceID="journalData" >
<EmptyDataTemplate>
<table runat="server" style="">
<tr>
<td>Finner ingen journaler.</td>
</tr>
</table>
</EmptyDataTemplate>
<ItemTemplate>
<tr style="">
<td class="navn">
<%# Eval("journalSentBy") %>
<%# Eval("journalrecvdBy") %>
</td>
<td class="text">
<asp:Label ID="journalTextLabel" runat="server" Text='<%# Eval("journalText") %>' />
</td>
<td>
<asp:Label ID="journalDateLabel" runat="server" Text='<%# Eval("journalDate") %>' />
</td>
</tr>
</ItemTemplate>
<LayoutTemplate>
<table id="itemPlaceholderContainer" runat="server" style="" cellpadding="0" cellspacing="0" border="0">
<tr runat="server" style="">
<th runat="server" class="navn">Navn</th>
<th runat="server" class="text">Journaltekst</th>
<th runat="server">Dato</th>
</tr>
<tr id="itemPlaceholder" runat="server">
</tr>
</table>
</LayoutTemplate>
</asp:ListView>
<asp:SqlDataSource ID="journalData" runat="server" ConnectionString="<%$ ConnectionStrings:S2000ConnectionString %>" SelectCommand="SELECT [journalSentBy], [journalrecvdBy], [journalText], [journalDate] FROM [TBL_CASE_JOURNAL] WHERE ([journalCaseId] = #journalCaseId) ORDER BY [journalDate] DESC">
<SelectParameters>
<asp:ControlParameter ControlID="txtcase" Name="journalCaseId" PropertyName="Text" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
</div>
My problem comes when i have created a function to insert New lines into the DB table and goes back to the listview, i cant get the list to be refreshed With the New data. Is there some commands or possible to create a function to handle this? Many thanks for any response concerning this!

Answer 1

At the end of your function add:
ListJournal.DataBind();
It should work.