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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 120001 to 121000 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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