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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 134001 to 135000 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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