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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 199001 to 200000 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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