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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 224001 to 225000 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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