I have a page with a panel and a popup modal extender. A button is clicked to open the panel and grey out the background, this all works great.

On the panel i have a textbox where a user enter a lastname then clicks a button to do a search and the results are returned to a gridview.

Ok, now for the problem:

The user enters say adams in the textbox and clicks search, the search works fine. Now they want to do another search, they enter smith and click the search button. No search is done, because for some reason the textbox now has adam, smith in it.

Is there something in ASP.net 3.5 sp1 that would cause something like this or maybe it is a browser setting.

I apprecaite any help on this strange one.

Hi,

if possible please provide your code so i can see it and give the solution.

Hiii i think you have to remove text from textbox before it is opening like this i have developed it on itemcommand of datalist so when it is fired textbox is empty

if (e.CommandName == "Select" )
        {

          
            txtSendMessage.Text = "";
            this.mdlPopup.Show();

        }

Here is my code for this process: I have tried everything I can think of and not luck.

This only happends in Wed Developer 2008/ .NET 3.5 sp1 and NOT Visual Studio 2005/ .NET 2.0 

    <script type="text/javascript"> 

function pageLoad(sender, args)
{
   var modalPopups = ['mpeClient'];

   AddHiddenEventToPopups(modalPopups);
}

function AddHiddenEventToPopups(modalPopups)
{
   //step through the popups
   for (var i=0; i < modalPopups.length; i++)
   {
      //find the current popup
      var popUp = $find(modalPopups[i]);

      //check it exists so the script won't fail
      if (popUp)
      {
         //Add the function below as the event
         popUp.add_hidden(HidePopupPanel);
      }
   }
}

function HidePopupPanel(source, args)
{
   //find the panel associated with the extender
   objPanel = document.getElementById(source._PopupControlID);

   //check the panel exists
   if (objPanel)
   {
      //set the display attribute, so it remains hidden on postback
      objPanel.style.display= 'none';
   }
}

    </script>                       




			<asp:Panel ID="pnlclient" runat="server" CssClass="modalPopupclient" Style="display: none">
                            <div style="margin-left: 10px; margin-top: 10px; margin-bottom: 10px; margin-right: 10px">
                                <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                                    <ContentTemplate>
                                        <table>
                                            <tr>
                                                <td>
                                                    <asp:Label ID="lblLastName" runat="server" Text="Last Name" Font-Names="Arial" Width="100px"></asp:Label>
                                                </td>
                                                <td>
                                                    <asp:Label ID="lblFirstName" runat="server" Text="First Name" Font-Names="Arial"
                                                        Width="100px"></asp:Label>
                                                </td>
                                                <td>
                                                    <asp:Label ID="lblOrgName" runat="server" Text="Organization Name" Font-Names="Arial"
                                                        Width="100px"></asp:Label>
                                                </td>
                                            </tr>
                                            <tr>
                                                <td>
                                                    <asp:TextBox ID="SearchLastName" runat="server" Columns="20" Width="100px"></asp:TextBox>
                                                </td>
                                                <td>
                                                    <asp:TextBox ID="SearchFirstName" runat="server" Columns="20" Width="100px"></asp:TextBox>
                                                </td>
                                                <td>
                                                    <asp:TextBox ID="SearchOrgName" runat="server" Columns="20" Width="100px"></asp:TextBox>
                                                </td>
                                                <td>
                                                    <asp:Button ID="btnSearch" OnClick="btnSearch_Click" runat="server" CausesValidation="False"
                                                        AccessKey="s" ToolTip="Click Search or press Alt s" Text="Search"></asp:Button>
                                                </td>
                                                <td>
                                                    <asp:Button ID="btnClear" OnClick="btnClear_Click" runat="server" CausesValidation="False"
                                                        Text="Clear Fields"></asp:Button>
                                                </td>
                                            </tr>
                                        </table>
                                        <asp:GridView ID="GridViewSearch" runat="server" Width="545px" AllowPaging="True"
                                            AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="client_ID" DataSourceID="SqlDataSource1"
                                            PageSize="15">
                                            <Columns>
                                                <asp:CommandField ShowSelectButton="True" HeaderText="Set IDs">
                                                    <ItemStyle Wrap="False" />
                                                </asp:CommandField>
                                                <asp:BoundField DataField="LastName" HeaderText="Last" SortExpression="LastName">
                                                    <HeaderStyle Wrap="False" />
                                                </asp:BoundField>
                                                <asp:BoundField DataField="FirstName" HeaderText="First">
                                                    <HeaderStyle Wrap="False" />
                                                </asp:BoundField>
                                                <asp:BoundField DataField="OrgName" HeaderText="Organization">
                                                    <ItemStyle Wrap="False" />
                                                </asp:BoundField>
                                                <asp:BoundField DataField="Address" HeaderText="Street Address">
                                                    <ItemStyle Wrap="False" />
                                                    <HeaderStyle Wrap="False" />
                                                </asp:BoundField>
                                             </Columns>
                                        </asp:GridView>
                                        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
                                            SelectCommand="ProcessSearch" SelectCommandType="StoredProcedure" CancelSelectOnNullParameter="false">
                                            <SelectParameters>
                                                <asp:ControlParameter ControlID="SearchLastName" Name="LastName" PropertyName="Text"
                                                    Type="String" ConvertEmptyStringToNull="true" />
                                                <asp:ControlParameter ControlID="SearchFirstName" Name="FirstName" PropertyName="Text"
                                                    Type="String" ConvertEmptyStringToNull="true" />
                                                <asp:ControlParameter ControlID="SearchOrgName" Name="OrgName" PropertyName="Text"
                                                    Type="String" ConvertEmptyStringToNull="true" />
                                            </SelectParameters>
                                        </asp:SqlDataSource>
                                        <asp:Label ID="clientmessage" runat="server" Text=""></asp:Label>
                                    </ContentTemplate>
                                </asp:UpdatePanel>
                                <div style="float: right">
                                    <asp:Button ID="btnOK" runat="server" Text="OK" CausesValidation="false" OnClick="btnOK_Click" />
                                </div>
                            </div>
                        </asp:Panel>
                        <cc1:ModalPopupExtender ID="mpeclient" runat="server" TargetControlID="imgbtnclient"
                            BehaviorID="mpeclient" PopupControlID="pnlclient" OkControlID="btnOK" BackgroundCssClass="modalBackgroundclient"
                            DropShadow="true">
                        </cc1:ModalPopupExtender>