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MacroSubsitutionDelegate<T> Delegate

Summary

Provides a delegate type to be used to process a macro.

Syntax

C++

public delegate string MacroSubsitutionDelegate\<T\>(  
   T item, 
   string name, 
   params object[] parameters 
)

Public Delegate Function MacroSubsitutionDelegate(Of T)( _ 
   ByVal item As T, _ 
   ByVal name As String, _ 
   ByVal ParamArray parameters() As Object _ 
) As String

generic<typename T> 
public delegate String^ MacroSubsitutionDelegate(  
   _T^_ item, 
   String^ name, 
   ... array<Object^>^ parameters 
)

Parameters

item
The user data passed to the macro process.

name
The name of the macro.

parameters
The parameters passed to the macro.

Type Parameters

T
Type of user item being passed to the macro process.

Return Value

A string that represents the macro.

Example

This example adds two macros to the macro processor and processes a string.

Imports Leadtools.Dicom.Common.Anonymization 
 
       
Public Sub MacroProcessorSample() 
   Dim processor As New MacroProcessor(Of Object)() 
   ' 
   ' add two macros to the macro processor 
   ' 
   processor.Macros.Add("current_date", New MacroSubsitutionDelegate(Of Object)(AddressOf CurrentDateMacro)) 
   processor.Macros.Add("current_time", New MacroSubsitutionDelegate(Of Object)(AddressOf CurrentTimeMacro)) 
 
   ' 
   ' Process a macro string 
   ' 
   Console.WriteLine(processor.Process(processor, "${current_date} ==> ${current_time}")) 
End Sub 
 
Private Function CurrentDateMacro(ByVal userData As Object, ByVal name As String, ByVal ParamArray parameters As Object()) As String 
   Return DateTime.Now.ToShortDateString() 
End Function 
 
Private Function CurrentTimeMacro(ByVal userData As Object, ByVal name As String, ByVal ParamArray parameters As Object()) As String 
   Return DateTime.Now.ToShortTimeString() 
End Function

using Leadtools.Dicom.Common.Anonymization; 
 
       
public void MacroProcessorSample() 
{ 
   MacroProcessor<object> processor = new MacroProcessor<object>(); 
   // 
   // add two macros to the macro processor 
   // 
 
   processor.Macros.Add("current_date", new MacroSubsitutionDelegate<object>(CurrentDateMacro)); 
   processor.Macros.Add("current_time", new MacroSubsitutionDelegate<object>(CurrentTimeMacro)); 
 
   // 
   // Process a macro string 
   // 
 
   Console.WriteLine(processor.Process(processor, "${current_date} ==> ${current_time}")); 
} 
 
private string CurrentDateMacro(object userData, string name, params object[] parameters) 
{ 
   return DateTime.Now.ToShortDateString(); 
} 
 
private string CurrentTimeMacro(object userData, string name, params object[] parameters) 
{ 
   return DateTime.Now.ToShortTimeString(); 
}