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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 139001 to 140000 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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