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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 273001 to 274000 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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