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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 228001 to 229000 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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