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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 143001 to 144000 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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