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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 187001 to 188000 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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