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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 247001 to 248000 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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