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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 275001 to 276000 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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