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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 272001 to 273000 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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