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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 199001 to 200000 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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