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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 135001 to 136000 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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