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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 155001 to 156000 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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