/// <summary>
/// Creates an IsoValue with the given values and stores it in the specified index.
/// </summary>
/// <param name="index">The field index (2 to 128)</param>
/// <param name="value">An object value to store inside an IsoValue.</param>
/// <param name="t">The ISO8583 for this value.</param>
/// <param name="length">The length of the value (useful only for NUMERIC and ALPHA types).</param>
public void SetValue(int index, object value, IsoType t, int length)
{
if (index < 2 || index > 128)
{
throw new ArgumentOutOfRangeException(nameof(index), "Index must be between 2 and 128");
}
if (value == null)
{
_fields.Remove(index);
}
else
{
IsoValue v = null;
v = IsoTypeHelper.NeedsLength(t) ? new IsoValue(t, value, length) : new IsoValue(t, value);
_fields[index] = v;
}
}
/// <summary> Creates a new instance to store a value of a fixed-length type. Fixed-length types are DATE4, DATE_EXP, DATE10, TIME, AMOUNT. </summary>
/// <param name="t">The <see cref="IsoType"/> (8583) type of the value that is going to be stored.</param>
/// <param name="value">The value to store.s</param>
public IsoValue(IsoType t, object value)
{
if (value == null)
{
throw new ArgumentException("Value cannot be null");
}
if (IsoTypeHelper.NeedsLength(t))
{
throw new ArgumentException("Use IsoValue constructor for Fixed-value types");
}
_type = t;
_fval = value;
if (t == IsoType.LLVAR || _type == IsoType.LLLVAR || t == IsoType.LLVARnp || _type == IsoType.LLLVARnp)
{
_length = value.ToString().Length;
}
else
{
_length = IsoTypeHelper.GetLength(t);
}
}
/// <summary>
/// Creates a new instance to store a value of a given type. This constructor
/// is used for variable-length types (LLVAR, LLLVAR, ALPHA, NUMERIC) -
/// variable in the sense that that length of the value does not depend
/// solely on the ISO type.
/// </summary>
/// <param name="t">the <see cref="IsoType"/> ISO8583 type of the value to be stored.</param>
/// <param name="val">The value to be stored.</param>
/// <param name="len">The length of the field.</param>
public IsoValue(IsoType t, object val, int len)
{
if (val == null)
{
throw new ArgumentException("Value cannot be null");
}
_type = t;
_fval = val;
_length = len;
if (_length < 0 && IsoTypeHelper.NeedsLength(t))
{
throw new ArgumentException("Length must be greater than zero");
}
else if (t == IsoType.LLVAR || t == IsoType.LLLVAR)
{
_length = val.ToString().Length;
//@@@ TAM
}
else if (t == IsoType.LLVARnp || t == IsoType.LLLVARnp)
{
_length = val.ToString().Length * 2;
}
}