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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 98001 to 99000 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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