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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 177001 to 178000 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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