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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 247001 to 248000 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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