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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 257001 to 258000 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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