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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 167001 to 168000 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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