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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 186001 to 187000 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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