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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 226001 to 227000 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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