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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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