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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 181001 to 182000 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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