do a post back when a message from SignalR package receive

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I have two nested gridView in my page , first gridView is for showing Posts and another for comments, I used SignalR package, when a user post new comment a message will be send to all other clients to update their GridView ! but now i dont know how update my gridview when new message is received ! i tried to do a postback with a hidden button but it dosent workS here is my codes ! please help to update my GridViews thnaks !

( i tried the SignalR is working )

    <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
          <asp:GridView ID="post" runat="server" AutoGenerateColumns="false"
             DataKeyNames="postID" OnRowDataBound="OnRowDataBound">
                <Columns>
              <asp:TemplateField>
                    <ItemTemplate>
       <asp:UpdatePanel ID="UpdatePanel1"   runat="server">
                  <ContentTemplate>
 <asp:Label ID="Label1" runat="server" Text='<%# Bind("Text") %>' ></asp:Label>
 <asp:Label ID="like" runat="server" Text='<%# Bind("number_of_likes") %>'></asp:Label>
   <asp:Panel ID="pnlOrders"  runat="server">

    <asp:GridView ID="comments" ShowHeader="false"  runat="server" AutoGenerateColumns="false">
                    <Columns >
                  <asp:TemplateField ShowHeader="false">
                          <ItemTemplate >
  <asp:Label ID="Label2" runat="server" Text='<%# Bind("SenderName") %>' ></asp:Label>
                                              </ItemTemplate>
                  </asp:TemplateField>
                     </Columns>
                      </asp:GridView>
                            </asp:Panel>
                            </ContentTemplate>
                               <Triggers>

       <asp:AsyncPostBackTrigger ControlID="ReloadThePanel" EventName="Click" />

                          </Triggers>
                                           </asp:UpdatePanel>
        <asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" runat="server">
                                    <ContentTemplate>
             <asp:TextBox ID="TextBox1" Text="" runat="server"></asp:TextBox>
          <asp:Button ID="Button1" OnClick="Button1_Click" runat="server" Text="Comment" />
                                        </ContentTemplate>
                                     <Triggers>

                 <asp:AsyncPostBackTrigger ControlID="ReloadThePanel" EventName="Click" />

                                    </Triggers>
                         </asp:UpdatePanel>

                        </ItemTemplate>
                    </asp:TemplateField>
                        </Columns>
            </asp:GridView>

scripts

<script type="text/javascript">
    $(function () {
        var chat = $.connection.chatHub;
        chat.client.broadcastMessage = function () {
            __doPostBack('<%=ReloadThePanel.ClientID %>', '');
           // i should rebind or make post back here
        };

        $.connection.hub.start().done(function () {

        });
    });
</script>

code behind

  protected void Page_Load(object sender, EventArgs e)
    {

                  if (!IsPostBack)
        {
            post.DataSource = GetData();
            post.DataBind();
        }

    }


 protected void Button1_Click(object sender, EventArgs e)
    {

        ChatHub.Send();
    }

asked 1 min ago

Mohammad OlfatMiri

5