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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...31 32 33 34 35 36 37 38 39 40 ... Item 30001 to 31000 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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