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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 287001 to 288000 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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