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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 240001 to 241000 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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