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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 171001 to 172000 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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