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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 227001 to 228000 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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