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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 224001 to 225000 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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