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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 140001 to 141000 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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