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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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