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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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