CODEWITHSUNDEEP
c#stack-tracestack-frame
klue
klue

Reputation: 59

Using calling method name as condition for conditional statement

Is it possible to get the name of the calling method, and execute code based on those results?

Below, I have two methods that are used for database CRUD operations. One adds an object to the database, another updates. Both return an object which contains a stat report for an operation.

Under certain conditions, I wouldn't bother updating the pkey field for an operation stat object within the Update method, if it's returning the stat-obj to the Add method.

public OperationStat Add(object obj)
{
  // Contains operation status data.
  OperationStat op = new OperationStat();
  op.PrimaryKey = pkey.newkey();

  // Record to update
  Person pete = new Person();

  // call update method.
  op = this.Update(pete);
}

public OperationStat Update(object obj)
{
  OperationStat op = new OperationStat();
  string callmethod = "Add";

  // Get stacktrace.
  StackTrace stackTrace = new StackTrace();
  StackFrame stackFrame = stackTrace.GetFrame(1);
  MethodBase methodBase = stackFrame.GetMethod();

  if(methodBase.Name != callmethod)
  {
   // create new primary key for status.
   op.Primarykey = pkey.newkey();
  }

  // fill operation stat object with details
  return op;
}

Upvotes: 1

Views: 1228

Answers (1)

Oded
Oded

Reputation: 499092

.NET 4.5 introduces a few new attributes that give you this kind of information.

The CallerMethodNameAttribute:

Allows you to obtain the method or property name of the caller to the method.

public OperationStat Update(object obj, [CallerMethodName] string calledFrom = "")
{
  OperationStat op = new OperationStat();
  string callmethod = "Add";

  if(calledFrom != callmethod)
  {
    op.Primarykey = pkey.newkey();
  }

  return op;
}

Upvotes: 4

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