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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 221001 to 222000 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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