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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 216001 to 217000 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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