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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 178001 to 179000 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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