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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 241001 to 242000 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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