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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 150001 to 151000 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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