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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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