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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 153001 to 154000 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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