// public bool IsNull(string columnName)
/// <summary>
/// Return True if a column value is NULL at the given position in the table schema. The first column is 1.
/// </summary>
public bool IsNull(int columnNumber)
{
bool res;
if (queryID <= 0)
{
return(false);
}
res = VistaDBAPI.ivsql_IsNull(queryID, columnNumber + 1);
return(res);
}
/// <summary>
/// Return True if a column value is NULL at the given position in the table schema. The first column is 1.
/// </summary>
public override bool IsNull(int columnNumber)
{
return(this.queryID == 0 || VistaDBAPI.ivsql_IsNull(this.queryID, columnNumber + 1));
}
