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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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