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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 187001 to 188000 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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