How Do I Bind Data In Repeater In But Data Not Show

<tr>
                      <td valign="top">
                          <asp:Label ID="lblAwards" runat="server" Text="AWARDS/ REWARDS/ DISTINCTIONS"></asp:Label>
                      </td>
                      <td class="fieldcell" style="width: 70%">
                          <asp:TextBox ID="txtAwards" runat="server" Width="90%" TextMode="MultiLine" Rows="2"></asp:TextBox>
                          <asp:ImageButton ID="imgbtnAddAwards" runat="server" Width="20px" Height="20px" ImageUrl="~/images/Icons/Add.png" OnClick="imgbtnAddAwards_Click" ToolTip="Add" />
                  </tr>
                  <tr>
                      <td colspan="2">
                          <asp:Repeater ID="repAwards" runat="server" Visible="true">
                              <ItemTemplate>
                                  <asp:Label ID="lblAwardName" runat="server" Text='<%#Eval("Awardname")+", " %>'></asp:Label>
                              </ItemTemplate>
                          </asp:Repeater>
                          <asp:ImageButton ID="imgbtnEditAward" runat="server" ImageUrl="~/images/Icons/Edit.png" Height="20px" Width="20px" ToolTip="Edit" Visible="false" OnClick="imgbtnEditAward_Click" />
                      </td>
                  </tr>

public class Award
   {
       public string Awardname { get; set; }
   }

protected void imgbtnAddAwards_Click(object sender, ImageClickEventArgs e)
   {
       if (txtAwards.Text.Trim() != "")
       {
           imgbtnEditAward.Visible = true;
           List<Award> Awardlist;
           if (ViewState["Award"]!= null)
               Awardlist = (List<Award>)ViewState["Award"];
           else
               Awardlist = new List<Award>();
           Awardlist.Add(new Award() { Awardname = txtAwards.Text.Trim() });
           ViewState["Award"] = Awardlist;
           //List<Award> Awardlist = (List<Award>)ViewState[
"Award"];
           repAwards.DataSource = Awardlist;
           repAwards.DataBind();
       }
       else
       {
           ShowMessage("Please enter Awards first.");
       }
   }