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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 133001 to 134000 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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