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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 120001 to 121000 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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