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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 179001 to 180000 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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