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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 50001 to 51000 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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