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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 225001 to 226000 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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