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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 262001 to 263000 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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