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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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