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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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