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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 276001 to 277000 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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