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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 186001 to 187000 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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