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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 126001 to 127000 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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