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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 265001 to 266000 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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