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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 186001 to 187000 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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