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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 178001 to 179000 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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