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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 156001 to 157000 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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