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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 173001 to 174000 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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