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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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