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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 229001 to 230000 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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