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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 220001 to 221000 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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