/// <summary>
/// performs execution of the If...Then...Else command
/// </summary>
/// <returns>object</returns>
public override object Execute()
{
object result = null;
if (this.Context.CurrentDataRow == null)
{
List <System.Data.DataRow> DT = this.Context.GetOutput(IfClause, this.ExecuteThenClause, this.ExecuteElseClause);
}
else
{
if (IfClause.Execute().ToString().Equals("true", StringComparison.CurrentCultureIgnoreCase))
{
result = ThenClause.Execute();
}
else
{
if (ElseClause != null)
{
result = ElseClause.Execute();
}
}
}
return(result);
}
/// <summary>
/// connects the execution of Rule_Statments
/// </summary>
/// <returns>object</returns>
public override object Execute()
{
object result = null;
if (statements != null && !Context.isCancelRequest)
{
Context.NextRule = statement;
result = statements.Execute();
}
if (!Context.RunOneCommand && !Context.isCancelRequest)
{
if (statement != null)
{
result = statement.Execute();
}
}
else
{
if (Context.CurrentDataRow == null)
{
if (!Context.OneCommandHasRun && !Context.isCancelRequest)
{
if (statement != null)
{
result = statement.Execute();
Context.OneCommandHasRun = true;
}
}
}
else
{
if (!Context.isCancelRequest)
{
if (statement != null)
{
result = statement.Execute();
}
}
}
}
return(result);
}
/// <summary>
/// executes the enclosed expressions
/// </summary>
/// <returns>object</returns>
public override object Execute()
{
object results = null;
if (this.statements != null)
{
results = statements.Execute();
}
return(results);
}
/// <summary>
/// performs the negation or pass-thru operation
/// </summary>
/// <returns>object</returns>
public override object Execute()
{
object result = null;
if (this.op != null)
{
if (this.op == "-")
{
result = -1.0 * double.Parse(Value.Execute().ToString());
}
else
{
result = double.Parse(Value.Execute().ToString());
}
}
else
{
result = Value.Execute();
}
return(result);
}