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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 188001 to 189000 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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