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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Sales Manager	Elizabeth Lincoln	Spain	1 2 3 4 5
2	Marketing Assistant	Antonio Moreno	Spain	1 2 3 4 5
3	Sales Consultant	Georg Pipps	Argentina	1 2 3 4 5
4	Marketing Assistant	Hanna Moos	Brazil	1 2 3 4 5
5	Sales Associate	Pascale Cartrain	England	1 2 3 4 5
6	Accounting Manager	Paul Henriot	Argentina	1 2 3 4 5
7	Sales Associate	Hanna Moos	Austria	1 2 3 4 5
8	Sales Associate	Jaime Yorres	Spain	1 2 3 4 5
9	Owner	Patricio Simpson	Spain	1 2 3 4 5
10	Owner	Antonio Moreno	USA	1 2 3 4 5
11	Sales Representative	Georg Pipps	Germany	1 2 3 4 5
12	Marketing Assistant	Jaime Yorres	Bulgaria	1 2 3 4 5
13	Sales Associate	Elizabeth Lincoln	England	1 2 3 4 5
14	Sales Representative	Jaime Yorres	Austria	1 2 3 4 5
15	Accounting Manager	Howard Snyder	Bulgaria	1 2 3 4 5
16	Sales Associate	Pascale Cartrain	France	1 2 3 4 5
17	Sales Agent	Antonio Moreno	Bulgaria	1 2 3 4 5
18	Marketing Assistant	Patricio Simpson	Austria	1 2 3 4 5
19	Sales Manager	Georg Pipps	England	1 2 3 4 5
20	Marketing Manager	Howard Snyder	Argentina	1 2 3 4 5
21	Sales Agent	Patricio Simpson	England	1 2 3 4 5
22	Accounting Manager	Georg Pipps	Spain	1 2 3 4 5
23	Marketing Assistant	Georg Pipps	England	1 2 3 4 5
24	Sales Consultant	Howard Snyder	Austria	1 2 3 4 5
25	Sales Agent	Hanna Moos	Brazil	1 2 3 4 5
26	Sales Manager	Howard Snyder	Germany	1 2 3 4 5
27	Sales Consultant	Paul Henriot	Germany	1 2 3 4 5
28	Sales Associate	Paul Henriot	Italy	1 2 3 4 5
29	Sales Associate	Matti Karttunen	Spain	1 2 3 4 5
30	Owner	Jaime Yorres	Italy	1 2 3 4 5
31	Sales Representative	Paul Henriot	USA	1 2 3 4 5
32	Sales Associate	Patricio Simpson	Brazil	1 2 3 4 5
33	Marketing Assistant	Hanna Moos	France	1 2 3 4 5
34	Sales Manager	Matti Karttunen	USA	1 2 3 4 5
35	Sales Representative	Howard Snyder	France	1 2 3 4 5
36	Sales Associate	Jaime Yorres	Bulgaria	1 2 3 4 5
37	Sales Associate	Matti Karttunen	Brazil	1 2 3 4 5
38	Owner	Howard Snyder	Spain	1 2 3 4 5
39	Sales Manager	Hanna Moos	Italy	1 2 3 4 5
40	Owner	Howard Snyder	Italy	1 2 3 4 5
41	Sales Agent	Patricio Simpson	USA	1 2 3 4 5
42	Sales Associate	Matti Karttunen	Bulgaria	1 2 3 4 5
43	Marketing Assistant	Antonio Moreno	Argentina	1 2 3 4 5
44	Marketing Assistant	Georg Pipps	Italy	1 2 3 4 5
45	Accounting Manager	Elizabeth Lincoln	Germany	1 2 3 4 5
46	Accounting Manager	Hanna Moos	Italy	1 2 3 4 5
47	Accountant	Hanna Moos	England	1 2 3 4 5
48	Owner	Paul Henriot	Argentina	1 2 3 4 5
49	Accountant	Jaime Yorres	Spain	1 2 3 4 5
50	Sales Manager	Elizabeth Lincoln	USA	1 2 3 4 5
51	Owner	Patricio Simpson	England	1 2 3 4 5
52	Accountant	Pascale Cartrain	Austria	1 2 3 4 5
53	Sales Consultant	Hanna Moos	France	1 2 3 4 5
54	Sales Consultant	Paul Henriot	Spain	1 2 3 4 5
55	Sales Consultant	Antonio Moreno	England	1 2 3 4 5
56	Marketing Manager	Pascale Cartrain	France	1 2 3 4 5
57	Sales Agent	Elizabeth Lincoln	Brazil	1 2 3 4 5
58	Owner	Patricio Simpson	Argentina	1 2 3 4 5
59	Sales Consultant	Elizabeth Lincoln	England	1 2 3 4 5
60	Accountant	Georg Pipps	France	1 2 3 4 5
61	Marketing Manager	Pascale Cartrain	Germany	1 2 3 4 5
62	Marketing Assistant	Jaime Yorres	England	1 2 3 4 5
63	Sales Agent	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
64	Sales Agent	Georg Pipps	Italy	1 2 3 4 5
65	Owner	Antonio Moreno	France	1 2 3 4 5
66	Owner	Elizabeth Lincoln	Argentina	1 2 3 4 5
67	Sales Representative	Jaime Yorres	USA	1 2 3 4 5
68	Marketing Manager	Howard Snyder	Italy	1 2 3 4 5
69	Sales Manager	Hanna Moos	USA	1 2 3 4 5
70	Marketing Assistant	Matti Karttunen	Bulgaria	1 2 3 4 5
71	Marketing Assistant	Howard Snyder	USA	1 2 3 4 5
72	Marketing Manager	Patricio Simpson	Argentina	1 2 3 4 5
73	Marketing Assistant	Jaime Yorres	Austria	1 2 3 4 5
74	Accountant	Patricio Simpson	Germany	1 2 3 4 5
75	Sales Consultant	Paul Henriot	Spain	1 2 3 4 5
76	Accounting Manager	Howard Snyder	England	1 2 3 4 5
77	Sales Associate	Hanna Moos	Argentina	1 2 3 4 5
78	Sales Representative	Hanna Moos	Italy	1 2 3 4 5
79	Accountant	Patricio Simpson	USA	1 2 3 4 5
80	Marketing Manager	Howard Snyder	Spain	1 2 3 4 5
81	Sales Manager	Georg Pipps	Austria	1 2 3 4 5
82	Marketing Assistant	Georg Pipps	England	1 2 3 4 5
83	Sales Agent	Hanna Moos	England	1 2 3 4 5
84	Marketing Manager	Paul Henriot	Argentina	1 2 3 4 5
85	Sales Consultant	Howard Snyder	USA	1 2 3 4 5
86	Sales Manager	Matti Karttunen	Spain	1 2 3 4 5
87	Sales Consultant	Antonio Moreno	Brazil	1 2 3 4 5
88	Accountant	Howard Snyder	Germany	1 2 3 4 5
89	Accountant	Jaime Yorres	Spain	1 2 3 4 5
90	Sales Representative	Hanna Moos	USA	1 2 3 4 5
91	Sales Associate	Pascale Cartrain	USA	1 2 3 4 5
92	Sales Manager	Patricio Simpson	Italy	1 2 3 4 5
93	Sales Consultant	Jaime Yorres	Brazil	1 2 3 4 5
94	Accounting Manager	Patricio Simpson	Argentina	1 2 3 4 5
95	Owner	Elizabeth Lincoln	Brazil	1 2 3 4 5
96	Sales Associate	Patricio Simpson	England	1 2 3 4 5
97	Owner	Jaime Yorres	France	1 2 3 4 5
98	Accountant	Antonio Moreno	Austria	1 2 3 4 5
99	Accountant	Georg Pipps	England	1 2 3 4 5
100	Sales Manager	Jaime Yorres	Bulgaria	1 2 3 4 5


...131 132 133 134 135 136 137 138 139 140 ... Item 139001 to 140000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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