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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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