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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 221001 to 222000 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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