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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 264001 to 265000 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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