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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 155001 to 156000 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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