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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 152001 to 153000 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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