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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 154001 to 155000 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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