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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 154001 to 155000 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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