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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 229001 to 230000 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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