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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 240001 to 241000 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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