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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 157001 to 158000 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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