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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 132001 to 133000 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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