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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 245001 to 246000 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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