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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 152001 to 153000 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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