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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 114001 to 115000 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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