HyperLinkColumn.DataNavigateUrlField Property
Definition
Important
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Gets or sets the field from a data source to bind to the URL of the hyperlinks in the HyperLinkColumn.
public:
virtual property System::String ^ DataNavigateUrlField { System::String ^ get(); void set(System::String ^ value); };public virtual string DataNavigateUrlField { get; set; }member this.DataNavigateUrlField : string with get, setPublic Overridable Property DataNavigateUrlField As StringProperty Value
The field from a data source to bind to the URL of the hyperlinks in the HyperLinkColumn.
Examples
The following example demonstrates how to use the DataNavigateUrlField property to specify the field in a data source to bind to the URL of the hyperlinks in the HyperLinkColumn.
Note
The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.
<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>HyperLinkColumn Example</title>
<script runat="server">
ICollection CreateDataSource()
{
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));
dt.Columns.Add(new DataColumn("PriceValue", typeof(Double)));
for (int i = 0; i < 3; i++)
{
dr = dt.NewRow();
dr[0] = i;
dr[1] = (Double)i * 1.23;
dt.Rows.Add(dr);
}
DataView dv = new DataView(dt);
return dv;
}
void Page_Load(Object sender, EventArgs e)
{
MyDataGrid.DataSource = CreateDataSource();
MyDataGrid.DataBind();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<h3>HyperLinkColumn Example</h3>
<asp:DataGrid id="MyDataGrid"
BorderColor="black"
BorderWidth="1"
GridLines="Both"
AutoGenerateColumns="false"
runat="server">
<HeaderStyle BackColor="#aaaadd"/>
<Columns>
<asp:HyperLinkColumn
HeaderText="Select an Item"
DataNavigateUrlField="IntegerValue"
DataNavigateUrlFormatString="detailspage.aspx?id={0}"
DataTextField="PriceValue"
DataTextFormatString="{0:c}"
Target="_blank"/>
</Columns>
</asp:DataGrid>
</form>
</body>
</html>
<%@ Page Language="VB" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>HyperLinkColumn Example</title>
<script runat="server">
Function CreateDataSource() As ICollection
Dim dt As DataTable = New DataTable()
Dim dr As DataRow
Dim i As Integer
dt.Columns.Add(New DataColumn("IntegerValue", GetType(Int32)))
dt.Columns.Add(New DataColumn("PriceValue", GetType(Double)))
For i = 0 to 2
dr = dt.NewRow()
dr(0) = i
dr(1) = CDbl(i) * 1.23
dt.Rows.Add(dr)
Next i
Dim dv As DataView = New DataView(dt)
Return dv
End Function
Sub Page_Load(sender As Object, e As EventArgs)
MyDataGrid.DataSource = CreateDataSource()
MyDataGrid.DataBind()
End Sub
</script>
</head>
<body>
<form id="form1" runat="server">
<h3>HyperLinkColumn Example</h3>
<asp:DataGrid id="MyDataGrid"
BorderColor="black"
BorderWidth="1"
GridLines="Both"
AutoGenerateColumns="false"
runat="server">
<HeaderStyle BackColor="#aaaadd"/>
<Columns>
<asp:HyperLinkColumn
HeaderText="Select an Item"
DataNavigateUrlField="IntegerValue"
DataNavigateUrlFormatString="detailspage.aspx?id={0}"
DataTextField="PriceValue"
DataTextFormatString="{0:c}"
Target="_blank"/>
</Columns>
</asp:DataGrid>
</form>
</body>
</html>
The following corresponding example displays the item selected in the previous example.
<%@ Page Language="C#" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Details page for DataGrid</title>
<script runat="server">
void Page_Load(Object sender, EventArgs e)
{
Label1.Text = "You selected item: " + Request.QueryString["id"];
}
</script>
</head>
<body>
<h3>Details page for DataGrid</h3>
<asp:Label id="Label1"
runat="server"/>
</body>
</html>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Details page for DataGrid</title>
<script runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
Label1.Text = "You selected item: " & Request.QueryString("id")
End Sub
</script>
</head>
<body>
<h3>Details page for DataGrid</h3>
<asp:Label id="Label1"
runat="server"/>
</body>
</html>
Remarks
Use the DataNavigateUrlField property to specify the field from a data source to bind to the URL of the hyperlinks in the HyperLinkColumn. When the URL is data bound to a field, the URL of each hyperlink in the column is set with a corresponding value in the specified field. This allows you to set a different URL for each hyperlink in the column. To specify the same URL for each row in the column, set the NavigateUrl property instead of this property.
Note
The DataNavigateUrlField and NavigateUrl properties cannot both be set at the same time. If both properties are set, the DataNavigateUrlField property takes precedence.
When you are using data binding, you can specify a custom display format for the URL of the hyperlinks by setting the DataNavigateUrlFormatString property.
