missingarg.cs

Excel的操作,其中可以读取及写入Excel 文件

using System;

using Microsoft.Fawvw.Components.NExcel.Biff;

namespace Microsoft.Fawvw.Components.NExcel.Biff.Formula
{
	
	/// <summary> Represents a missing argument in an argument list</summary>
	class MissingArg:Operand, ParsedThing
	{
		/// <summary> Gets the token representation of this item in RPN
		/// 
		/// </summary>
		/// <returns> the bytes applicable to this formula
		/// </returns>
		override internal sbyte[] Bytes
		{
			get
			{
				sbyte[] data = new sbyte[1];
				data[0] = Token.MISSING_ARG.Code;
				
				return data;
			}
			
		}
		/// <summary> Constructor</summary>
		public MissingArg()
		{
		}
		
		/// <summary> Reads the ptg data from the array starting at the specified position.
		/// A missing argument contains no associated data
		/// 
		/// </summary>
		/// <param name="data">the RPN array
		/// </param>
		/// <param name="pos">the current position in the array, excluding the ptg identifier
		/// </param>
		/// <returns> the number of bytes read
		/// </returns>
		public virtual int read(sbyte[] data, int pos)
		{
			return 0;
		}
		
		/// <summary> Abstract method implementation to get the string equivalent of this
		/// token
		/// 
		/// </summary>
		/// <param name="buf">the string to append to
		/// </param>
		public override void  getString(System.Text.StringBuilder buf)
		{
		}
	}
}