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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 243001 to 244000 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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