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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 226001 to 227000 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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