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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 144001 to 145000 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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