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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 175001 to 176000 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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