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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 184001 to 185000 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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