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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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