'宣言
 
Public Overloads Function Evaluate( _
   ByVal expression As System.String _
) As System.Object

public System.object Evaluate( 
   System.string expression
)

パラメータ

expression

A string with a VBScript expression to be evaluated.

戻り値の型

Use this method to evaluate expressions as they would be evaluated while generating a report. This can be useful in designer-type applications, to provide an "Immediate Window" where users can test expressions.

If the expression string contains invalid syntax or causes an evaluation error, the control raises the ReportError event. In this case, the Handled parameter of the event is set to true, so the exception is ignored by default.

Expressions may contain simple VBScript expressions such as:

Expressions may also contain references to the Report object and all its sub-objects. For example:

Finally, data fields, Field, and Section objects may be referenced directly by name.

Console.WriteLine(_c1r.Evaluate("2+2"));
  4
Console.WriteLine(_c1r.Evaluate(" \"A\" & \"B\" ");
  AB

Console.WriteLine(_c1r.Evaluate("Report.DataSource.RecordSource"));
  SELECT * FROM Employees
Console.WriteLine(_c1r.Evaluate("Report.DataSource.Recordset.Fields.Count"));
  7
Console.WriteLine(_c1r.Evaluate("Report.Fields(0).Name"));
  FirstNameField

Console.WriteLine(_c1r.Evaluate("FirstNameField.Value"));
  Andrew
Console.WriteLine(_c1r.Evaluate("CategoryName"));
  Beverages

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