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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 157001 to 158000 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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