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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 181001 to 182000 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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