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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 172001 to 173000 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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