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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 156001 to 157000 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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