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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 245001 to 246000 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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