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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 135001 to 136000 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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