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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 61001 to 62000 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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