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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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