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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 152001 to 153000 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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