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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 144001 to 145000 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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