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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 260001 to 261000 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="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ 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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