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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 154001 to 155000 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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