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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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