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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 151001 to 152000 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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