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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 296001 to 297000 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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