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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 269001 to 270000 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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