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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 173001 to 174000 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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