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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 288001 to 289000 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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