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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 216001 to 217000 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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