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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 153001 to 154000 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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