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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 227001 to 228000 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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