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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 175001 to 176000 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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