Literal content ('<asp:ListItem Selected="') is not allowed within a 'System.Web.UI. WebControls.Lis tItemCollection '

[John Smith]

This is what I am trying to do:

<asp:datagrid id="DataGrid1" runat="server" AutoGenerateCol umns="False">
<Columns>
<asp:BoundColum n Visible="False" DataField="id" ReadOnly="True"
HeaderText="ID" ></asp:BoundColumn >
<asp:TemplateCo lumn HeaderText="O">
<ItemTemplate >
<asp:DropDownLi st id="cmbObdelaj " runat="server" AutoPostBack="T rue"
OnSelectedIndex Changed="DropDo wn_SelectedInde xChanged">
<asp:ListItem Selected="<%# GetSelected("P" ,
DataBinder.Eval (Container.Data Item, "S").ToString() ) %>"
Value="P">PPPP</asp:ListItem>
<asp:ListItem Selected="<%# GetSelected("D" ,
DataBinder.Eval (Container.Data Item, "S").ToString() ) %>"
Value="D">DDDD</asp:ListItem>
</asp:DropDownLis t>
</ItemTemplate>
</asp:TemplateCol umn>
<asp:datagrid >

Public Function GetSelected(ByV al expectedCode As String, ByVal realCode As
String) As String
If expectedCode = realCode Then
Return "True"
Else
Return "False"
End If
End Function

This is the error message:

Parser Error
Description: An error occurred during the parsing of a resource required to
service this request. Please review the following specific parse error
details and modify your source file appropriately.
Parser Error Message: Literal content ('<asp:ListItem Selected="') is not
allowed within a 'System.Web.UI. WebControls.Lis tItemCollection '.
Source Error:
Line 7: <asp:DropDownLi st id="cmbObdelaj " runat="server"
AutoPostBack="T rue"
Line 8: OnSelectedIndex Changed="DropDo wn_SelectedInde xChanged">
Line 9: <asp:ListItem Selected="<%# GetSelected("P" ,
DataBinder.Eval (Container.Data Item, "S").ToString() ) %>"
Value="P">PPPP</asp:ListItem>
Line 10: <asp:ListItem Selected="<%# GetSelected("D" ,
DataBinder.Eval (Container.Data Item, "S").ToString() ) %>"
Value="D">DDDD</asp:ListItem>