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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 229001 to 230000 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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