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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 153001 to 154000 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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