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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 68001 to 69000 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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