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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 133001 to 134000 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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