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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 229001 to 230000 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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