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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 284001 to 285000 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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