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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 270001 to 271000 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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