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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 150001 to 151000 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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