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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 222001 to 223000 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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