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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 186001 to 187000 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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