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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 151001 to 152000 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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