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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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