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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 261001 to 262000 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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