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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 177001 to 178000 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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