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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 264001 to 265000 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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