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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 266001 to 267000 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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