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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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