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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 225001 to 226000 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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