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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 150001 to 151000 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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