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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 268001 to 269000 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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