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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 144001 to 145000 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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