not editing perfect
.aspx Page
<table width="100%" cellpadding="0" cellspacing="0">
<tr>
<td>
<asp:ListView ID="ListView1" runat="server" EnableModelValidation="true" DataKeyNames="ID"
DataSourceID="emailSqlDataSource1">
<EditItemTemplate>
<tr style="">
<td>
<asp:Label ID="IDLabel1" runat="server" Text='<%# Eval("ID") %>' />
</td>
<td>
<asp:TextBox ID="editEmailIDTextBox" runat="server" Width="200px" ValidationGroup="editemailvalidate" Text='<%# Bind("EmailID") %>' />
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="editEmailIDText ...
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