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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 130001 to 131000 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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