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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 293001 to 294000 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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