ConstructorNeedsTagAttribute.NeedsTag Property
Definition
Important
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Indicates whether a control needs a tag name in its constructor. This property is read-only.
public:
property bool NeedsTag { bool get(); };
public bool NeedsTag { get; }
member this.NeedsTag : bool
Public ReadOnly Property NeedsTag As Boolean
Property Value
true
if the control needs a tag in its constructor. The default is false
.
Examples
// Attach the ConstructorNeedsTagAttribute to the custom Simple
// class, which is derived from the WebControl class. This
// instance of the ConstructorNeedsTagAttribute class sets the
// NeedsTag property to true.
[ConstructorNeedsTagAttribute(true)]
[AspNetHostingPermission(SecurityAction.Demand,
Level=AspNetHostingPermissionLevel.Minimal)]
public sealed class Simple : WebControl
{
private String NameTag = "";
public Simple(String tag)
{
this.NameTag = tag;
}
private String UserMessage = null;
// Create a property named ControlValue.
public String ControlValue
{
get
{
return UserMessage;
}
set
{
UserMessage = value;
}
}
protected override void Render(HtmlTextWriter output)
{
output.Write("Testing the ConstructorNeedsTagAttribute Class.");
}
}
' Attach the ConstructorNeedsTagAttribute to the custom Simple
' class, which is derived from the WebControl class. This
' instance of the ConstructorNeedsTagAttribute class sets the
' NeedsTag property to true.
<ConstructorNeedsTagAttribute(True)> _
<AspNetHostingPermission(SecurityAction.Demand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
Public NotInheritable Class Simple
Inherits WebControl
Private NameTag As String = ""
Public Sub New(tag As String)
Me.NameTag = tag
End Sub
Private UserMessage As String = Nothing
' Create a property named ControlValue.
Public Property ControlValue() As [String]
Get
Return UserMessage
End Get
Set
UserMessage = value
End Set
End Property
Protected Overrides Sub Render(output As HtmlTextWriter)
output.Write("Testing the ConstructorNeedsTagAttribute Class.")
End Sub
End Class
Applies to
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