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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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