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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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