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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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