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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 267001 to 268000 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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