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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 241001 to 242000 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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