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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 221001 to 222000 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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