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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 159001 to 160000 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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