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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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