Listbox without values - asp.net

Question

this is what happens. i don't understand why its not working, because if i copy the code to a normal template everything works fine :S so i dont think its a code issue. im working with asp and c#![enter image description here][1]
http://s21.postimg.org/3jsi8351z/weird.png here is a prints screen i took to explain the issue
Asp:
<asp:panel ID="pnltopico" runat="server" GroupingText="Topico" Height="100px"
Width="550px" Visible="False" Wrap="False">
<asp:DropDownList ID="droptopico" runat="server" AutoPostBack="True"
DataSourceID="SqlDataSource1" DataTextField="nome" DataValueField="Id_topico"
Height="22px"
onselectedindexchanged="DroptopicoSelectedIndexCha nged" Width="169px">
</asp:DropDownList>
<asp:panel ID="pnlpermissoestopico" runat="server" GroupingText="Permissões"
Height="59px" style="margin-top: 0px" Width="354px" Wrap="False"
ClientIDMode="inherit">
<asp:ListBox ID="lbpermitidotp" runat="server"
EnableViewState="true" Height="80px"
></asp:ListBox>
<asp:Button ID="btnproibirtp" runat="server" onclick="BtnpermitirClick"
Text=">>" />
<asp:Button ID="btnpermitirtp" runat="server" onclick="BtnnaopermitirClick"
Text="<<" Height="26px" />
<asp:ListBox ID="lbproibidotp" runat="server"
EnableTheming="False" EnableViewState="true" Height="80px" onselectedindexchanged="lbproibidotp_SelectedIndex Changed"
></asp:ListBox> </asp:panel>
since the code is working fine i dont think i need to post the c# code but let me know if it could help.
thanks for your help

Answer 1

Hey I just Modified your code a little and Compiled it everything is working fine now:
<asp:panel ID="pnltopico" runat="server" GroupingText="Topico" Height="100px"
Width="550px" Visible="False" Wrap="False">
<asp:DropDownList ID="droptopico" runat="server" AutoPostBack="True"
DataTextField="nome" DataValueField="Id_topico"
Height="22px"
onselectedindexchanged="droptopico_SelectedIndexChanged" Width="169px">
</asp:DropDownList>
</asp:panel>
<asp:panel ID="pnlpermissoestopico" runat="server" GroupingText="Permissões"
Height="59px" style="margin-top: 0px" Width="354px" Wrap="False"
ClientIDMode="inherit">
<asp:ListBox ID="lbpermitidotp" runat="server"
EnableViewState="true" Height="80px"
>
<asp:ListItem Text="Admin" Value="Admin" />
<asp:ListItem Text="Guest" Value="Guest" />
</asp:ListBox>
<asp:Button ID="btnproibirtp" runat="server" OnClick="btnproibirtp_Click"
Text=">>" />
<asp:Button ID="btnpermitirtp" runat="server"
Text="<<" Height="26px" />
<asp:ListBox ID="lbproibidotp" runat="server" EnableTheming="False" EnableViewState="true" Height="80px">
<asp:ListItem Text="Moderator" Value="Moderator" />
<asp:ListItem Text="Utilizer" Value="Utilizer" />
</asp:ListBox> </asp:panel>
and I have put the breakpoint on the Button Click of the btnproibirtp , just to verify and it works normally ,
I think u had some tags formation error or so :
protected void btnproibirtp_Click(object sender, EventArgs e)
{
string lbl1 = lbproibidotp.SelectedValue;
}
regards