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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 151001 to 152000 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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