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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 79001 to 80000 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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