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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 66001 to 67000 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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