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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 155001 to 156000 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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