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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 250001 to 251000 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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