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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 187001 to 188000 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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