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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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