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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 155001 to 156000 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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