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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 236001 to 237000 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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