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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 269001 to 270000 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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