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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 135001 to 136000 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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