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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 155001 to 156000 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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