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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 181001 to 182000 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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