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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 177001 to 178000 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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