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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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