ControlBuilder.InDesigner Property
Definition
Important
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Returns whether the ControlBuilder is running in the designer.
protected:
property bool InDesigner { bool get(); };protected bool InDesigner { get; }member this.InDesigner : boolProtected ReadOnly Property InDesigner As BooleanProperty Value
true if the ControlBuilder is running in the designer; otherwise, false.
Examples
The following example uses the InDesigner property when the NeedsTagInnerText method is called. When a control has this builder attached to it, the NeedsTagInnerText method determines whether the control is being accessed at design-time through a designer. The NeedsTagInnerText returns the value of the InDesigner property, and then the SetTagInnerText method is called. If the InDesigner property is set to false, an Exception is thrown. Otherwise, the inner text of the control is returned on the SetTagInnerText call.
[AspNetHostingPermission(SecurityAction.Demand,
Level=AspNetHostingPermissionLevel.Minimal)]
public sealed class MyControlControlBuilder : ControlBuilder
{
private string _innerText;
public override bool NeedsTagInnerText()
{
return InDesigner;
}
public override void SetTagInnerText(string text)
{
if (!InDesigner)
throw new Exception("The control is not in design mode.");
else
_innerText = text;
}
}
<AspNetHostingPermission(SecurityAction.Demand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
Public NotInheritable Class MyControlControlBuilder
Inherits ControlBuilder
Private _innerText As String
Overrides Public Function NeedsTagInnerText() As Boolean
Return InDesigner
End Function
Overrides Public Sub SetTagInnerText(ByVal text As String)
If InDesigner = False
Throw New System.Exception("The control is not in design mode.")
Else
_innerText = text
End If
End Sub
End Class
