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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 121001 to 122000 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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