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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 133001 to 134000 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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