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ASP.NET Server Controls
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ASP.NET Maintaining the ViewState
ASP.NET - The TextBox Control
ASP.NET - The Button Control
ASP.NET - Data Binding
ASP.NET - The ArrayList Object
ASP.NET - The Hashtable Object
ASP.NET - The SortedList Object
ASP.NET - XML Files
ASP.NET - The Repeater Control
ASP.NET - The DataList Control
ASP.NET - Database Connection
ASP.NET - HTML Server Controls
ASP.NET - Web Server Controls
ASP.NET - Validation Server Controls
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ASP.NET - The DataList Control

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To display a repeated list of items that are bound to the control,The DataList control is used.

A D V E R T I S E M E N T
However,by default the DataList control adds a table around the data items.



Bind a DataSet to a DataList Control

To display a repeated list of items that are bound to the control,The DataList control is used. However,by default the DataList control adds a table around the data items. The DataList control may be bound to an XML file,a database table, or another list of items. Here we will show how to bind an XML file to a DataList control.

We will use the following XML file in our examples ("cdcatalog.xml"):

<?xml version="1.0" encoding="ISO-8859-1"?>
<catalog>
<cd>
<title>Empire Burlesque</title>
<artist>Bob Dylan</artist>
<country>USA</country>
<company>Columbia</company>
<price>10.90</price>
<year>1985</year>
</cd>
<cd>
<title>Hide your heart</title>
<artist>Bonnie Tyler</artist>
<country>UK</country>
<company>CBS Records</company>
<price>9.90</price>
<year>1988</year>
</cd>
<cd>
<title>Greatest Hits</title>
<artist>Dolly Parton</artist>
<country>USA</country>
<company>RCA</company>
<price>9.90</price>
<year>1982</year>
</cd>
<cd>
<title>Still got the blues</title>
<artist>Gary Moore</artist>
<country>UK</country>
<company>Virgin records</company>
<price>10.20</price>
<year>1990</year>
</cd>
<cd>
<title>Eros</title>
<artist>Eros Ramazzotti</artist>
<country>EU</country>
<company>BMG</company>
<price>9.90</price>
<year>1997</year>
</cd>
</catalog>


At first, import the "System.Data" namespace. To work with the DataSet objects,we need this namespace. At the top of an .aspx page,include the following directive:

<%@ Import Namespace="System.Data" %>

Next, create a DataSet for the XML file and when the page is first loaded,load the XML file into the DataSet:

<script runat="server">
sub Page_Load
if Not Page.IsPostBack then
dim mycdcatalog=New DataSet
mycdcatalog.ReadXml(MapPath("cdcatalog.xml"))
end if
end sub

Then in an .aspx page,we create a DataList. The contents of the <HeaderTemplate> element are rendered first and only once within the output and then the contents of the <ItemTemplate> element are repeated for each "record" in the DataSet, and last, the contents of the <FooterTemplate> element are rendered once within the output:

<html>
<body>
<form runat="server">
<asp:DataList id="cdcatalog" runat="server">
<HeaderTemplate>

... </HeaderTemplate>
<ItemTemplate>

... </ItemTemplate>
<FooterTemplate>

... </FooterTemplate>
</asp:DataList>
</form>
</body>
</html>

Then we add the following script that creates the DataSet and binds the mycdcatalog DataSet to the DataList control and also fill the DataList control with a <HeaderTemplate> that contains the header of the table, an <ItemTemplate> that contains the data items to display, and a <FooterTemplate> that contains a text. Note that to display table borders,the gridlines attribute of the DataList is set to "both":

<%@ Import Namespace="System.Data" %>
<script runat="server">
sub Page_Load
if Not Page.IsPostBack then
dim mycdcatalog=New DataSet
mycdcatalog.ReadXml(MapPath("cdcatalog.xml"))
cdcatalog.DataSource=mycdcatalog
cdcatalog.DataBind()
end if
end sub
</script>
<html>
<body>
<form runat="server">
<asp:DataList id="cdcatalog"
gridlines="both" runat="server">
<HeaderTemplate>
My CD Catalog
</HeaderTemplate>
<ItemTemplate>
"<%#Container.DataItem("title")%>" of
<%#Container.DataItem("artist")%> -
$<%#Container.DataItem("price")%>
</ItemTemplate>
<FooterTemplate>
Copyright Hege Refsnes
</FooterTemplate>
</asp:DataList>
</form>
</body>
</html>



Using Styles

To make the output more fancy,you can also add styles to the DataList control:

<%@ Import Namespace="System.Data" %>
<script runat="server">
sub Page_Load
if Not Page.IsPostBack then
dim mycdcatalog=New DataSet
mycdcatalog.ReadXml(MapPath("cdcatalog.xml"))
cdcatalog.DataSource=mycdcatalog
cdcatalog.DataBind()
end if
end sub
</script>
<html>
<body>
<form runat="server">
<asp:DataList id="cdcatalog"
runat="server"
cellpadding="2"
cellspacing="2"
borderstyle="inset"
backcolor="#e8e8e8"
width="100%"
headerstyle-font-name="Verdana"
headerstyle-font-size="12pt"
headerstyle-horizontalalign="center"
headerstyle-font-bold="true"
itemstyle-backcolor="#778899"
itemstyle-forecolor="#ffffff"
footerstyle-font-size="9pt"
footerstyle-font-italic="true">
<HeaderTemplate>
My CD Catalog
</HeaderTemplate>
<ItemTemplate>
"<%#Container.DataItem("title")%>" of
<%#Container.DataItem("artist")%> -
$<%#Container.DataItem("price")%>
</ItemTemplate>
<FooterTemplate>
Copyright Hege Refsnes
</FooterTemplate>
</asp:DataList>
</form>
</body>
</html>



Using the <AlternatingItemTemplate>

After the <ItemTemplate> element,you can add an <AlternatingItemTemplate> element to describe the appearance of alternating rows of output and you may style the data in the <AlternatingItemTemplate> section within the DataList control:

<%@ Import Namespace="System.Data" %>
<script runat="server">
sub Page_Load
if Not Page.IsPostBack then
dim mycdcatalog=New DataSet
mycdcatalog.ReadXml(MapPath("cdcatalog.xml"))
cdcatalog.DataSource=mycdcatalog
cdcatalog.DataBind()
end if
end sub
</script>
<html>
<body>
<form runat="server">
<asp:DataList id="cdcatalog"
runat="server"
cellpadding="2"
cellspacing="2"
borderstyle="inset"
backcolor="#e8e8e8"
width="100%"
headerstyle-font-name="Verdana"
headerstyle-font-size="12pt"
headerstyle-horizontalalign="center"
headerstyle-font-bold="True"
itemstyle-backcolor="#778899"
itemstyle-forecolor="#ffffff"
alternatingitemstyle-backcolor="#e8e8e8"
alternatingitemstyle-forecolor="#000000"
footerstyle-font-size="9pt"
footerstyle-font-italic="True">
<HeaderTemplate>
My CD Catalog
</HeaderTemplate>
<ItemTemplate>
"<%#Container.DataItem("title")%>" of
<%#Container.DataItem("artist")%> -
$<%#Container.DataItem("price")%>
</ItemTemplate>
<AlternatingItemTemplate>
"<%#Container.DataItem("title")%>" of
<%#Container.DataItem("artist")%> -
$<%#Container.DataItem("price")%>
</AlternatingItemTemplate>
<FooterTemplate>
&copy; Hege Refsnes
</FooterTemplate>
</asp:DataList>
</form>
</body>
</html>


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Keywords: ASP.NET using The DataList Control, asp net datalist, vb net datalist, asp net control, vb net using, asp net using, visual basic using, visual basic control, using visual basic 6, c# datalist, datalist datagrid, msdn datalist, datalist paging, c# using, dynamic datalist, datalist dropdownlist, datalist columns, datalist sort, datalist checkbox, datagrid control, datalist databinding, datalist databind, datalist datasource, edit datalist, datalist table, repeater datalist, repeater control, datalist hyperlink, datalist dataset, dropdownlist control, datalist header, datalist select, datalist button, datalist xml, datalist add

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