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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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