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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 189001 to 190000 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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