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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 155001 to 156000 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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