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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 175001 to 176000 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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