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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 179001 to 180000 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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