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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 157001 to 158000 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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