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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 280001 to 281000 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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