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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 265001 to 266000 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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