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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 157001 to 158000 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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