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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 150001 to 151000 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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