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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 258001 to 259000 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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