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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 189001 to 190000 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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