/// <summary>
/// Initializes a new instance of the <see cref="SpssStringVariable"/> class
/// for use in loading variables from an existing SPSS data file.
/// </summary>
/// <param name="variables">The containing collection.</param>
/// <param name="varName">The name of the variable being loaded.</param>
/// <param name="length">The length of the string variable. This is the same as SpssType</param>
protected internal SpssStringVariable(SpssVariablesCollection variables, string varName, int length)
: base(variables, varName)
{
this.valueLabels = new SpssStringVariableValueLabelsDictionary(this);
this.length = length;
MissingValueFormatCode formatCode;
string[] missingValues = new string[3];
ReturnCode result = SpssException.ThrowOnFailure(SpssSafeWrapper.spssGetVarCMissingValues(this.FileHandle, this.Name, out formatCode, out missingValues[0], out missingValues[1], out missingValues[2]), "spssGetVarCMissingValues", ReturnCode.SPSS_SHORTSTR_EXP);
if (result == ReturnCode.SPSS_OK)
{
this.MissingValues = new List <string>(missingValues.Take((int)formatCode));
}
else
{
this.MissingValues = new List <string>(0);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="SpssStringVariable"/> class
/// for use when defining a new variable.
/// </summary>
public SpssStringVariable()
{
this.valueLabels = new SpssStringVariableValueLabelsDictionary(this);
this.MissingValues = new List <string>(3);
}
