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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 138001 to 139000 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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