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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 169001 to 170000 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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