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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 213001 to 214000 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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