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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 150001 to 151000 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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