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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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