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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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