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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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