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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 134001 to 135000 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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