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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...31 32 33 34 35 36 37 38 39 40 ... Item 38001 to 39000 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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