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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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