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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 156001 to 157000 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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