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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 268001 to 269000 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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