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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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