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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 143001 to 144000 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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