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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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