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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 144001 to 145000 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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