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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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