Datagrid : get text value inside datagrid

[4life]

I get this error
'items' is not a member of 'System.EventArgs'.

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Sub Insert(sender As Object, e As EventArgs)
Dim As_Of_Date As String

''items' is not a member of 'System.EventArgs'.
As_Of_Date = Ctype(e.items.FindControl(add_As_Of_Date), Textbox).Text


<ASPatagrid id="DBCalendar" runat="server" CellPadding="3">
<Columns>
<asp:TemplateColumn HeaderText="">
<ItemTemplate>
<asp:TextBox ID="add_As_Of_Date" size="7" Runat=server Text='<%# Format(DataBinder.Eval( Container.DataItem, "DAY_DATE" ),"MM/dd/yyyy") %>'></asp:TextBox>

</ItemTemplate>