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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 180001 to 181000 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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