[0.8.2] Multiple WindowUnload for GridView in UpdatePanel

  1. #1

    [0.8.2] Multiple WindowUnload for GridView in UpdatePanel

    When start this page and select different items in GridView,
    <WindowUnload Handler="alert('WindowUnload');" /> fires 2x, 3x, 4x, ... times.


    <%@ Page Language="C#" AutoEventWireup="true" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <%@ Import Namespace="TestWebApplication" %>
    <%@ Register assembly="Coolite.Ext.Web" namespace="Coolite.Ext.Web" tagprefix="ext" %>
    <script runat="server">
    public class Driver
    {
    private string name;
    public string Name
    {
    get { return name; }
    set { name = value; }
    }
    }
    protected void Page_Load(object sender, EventArgs e)
    {
    if (!IsPostBack)
    {
    System.Collections.Generic.List<Driver> drivers = new System.Collections.Generic.List<Driver>();
    Driver driver = new Driver() { Name = "Driver 1" };
    drivers.Add(driver);
    driver = new Driver() { Name = "Driver 2" };
    drivers.Add(driver);
    driver = new Driver() { Name = "Driver 3" };
    drivers.Add(driver);
    driver = new Driver() { Name = "Driver 4" };
    drivers.Add(driver);
    gvDetail.DataSource = drivers;
    gvDetail.DataBind();
    }
    }
    protected void gvDetail_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)
    {
    }
    </script>
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head id="Head" runat="server">
    <title>RControl</title>
    </head>
    <body id="MasterBody" runat="server">
    <form id="Form" runat="server">
    <asp:ScriptManager ID="ASPScriptManager" runat="server" AsyncPostBackTimeout="1000" EnableScriptGlobalization="True">
    </asp:ScriptManager>
    <ext:ScriptManager ID="EXTScriptManager" runat="server" Theme="Default">
    <Listeners>
    <WindowUnload Handler="alert('WindowUnload');" />
    </Listeners>
    </ext:ScriptManager>
    <ext:ViewPort ID="ViewPort" runat="server" StyleSpec="width:100%; height:100%;">
    <Body>
    <ext:Panel ID="Panel" runat="server" Header="False" BodyBorder="False" Border="False" StyleSpec="width:100%; height:100%;">
    <Body>
    <asp:UpdatePanel ID="TabGPSGridsUpdatePanel" runat="server" UpdateMode="Conditional">
    <ContentTemplate>
    <asp:GridView runat="server" ID="gvDetail"
    ForeColor="#333333" GridLines="None" CellPadding="4" Width="100%" HorizontalAlign="Left" 
    onselectedindexchanging="gvDetail_SelectedIndexChanging"
    EnableModelValidation="True">
    <AlternatingRowStyle BackColor="White" ForeColor="#284775" Height="20px" />
    <Columns>
    <asp:CommandField SelectText="Карта" ShowSelectButton="True">
    <ItemStyle Width="90px" />
    </asp:CommandField>
    </Columns>
    <FooterStyle BackColor="#999999" ForeColor="White" Height="20px" />
    <HeaderStyle BackColor="#999999" ForeColor="White" Height="20px" />
    <PagerSettings Mode="NumericFirstLast" PageButtonCount="5" />
    <PagerStyle BackColor="#284775" ForeColor="White" Height="20px" HorizontalAlign="Center" />
    <RowStyle BackColor="#F7F6F3" ForeColor="#333333" Height="20px" />
    <SelectedRowStyle BackColor="#E2DED6" ForeColor="#333333" Height="20px" />
    </asp:GridView>
    </ContentTemplate>
    </asp:UpdatePanel>
    </Body>
    </ext:Panel>
    </Body>
    </ext:ViewPort>
    </form>
    </body>
    </html>
    Last edited by geoffrey.mcgill; Jul 29, 2010 at 7:03 AM.

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