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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 283001 to 284000 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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