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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 198001 to 199000 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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