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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 91001 to 92000 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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