public void Add(string sourceColumn, string destinationColumn, ColumnTransformDelegate columnTransform)
{
if (string.IsNullOrWhiteSpace(sourceColumn))
{
throw new ArgumentNullException(nameof(sourceColumn), "Destination column '" + destinationColumn + "' must have a corresponding source column.");
}
if (string.IsNullOrWhiteSpace(sourceColumn))
{
throw new ArgumentNullException(nameof(destinationColumn), "Source column '" + sourceColumn + "' must have a corresponding destination column.");
}
if (!ContainsSourceColumn(sourceColumn) && !ContainsDestinationColumn(destinationColumn))
{
SourceToDestination.Add(sourceColumn, destinationColumn);
DestinationToSource.Add(destinationColumn, sourceColumn);
}
else if (ContainsSourceColumn(sourceColumn) && GetDestinationColumn(sourceColumn) != destinationColumn)
{
throw new ArgumentException("The source column '" + sourceColumn + "' cannot be mapped to destination column '" + destinationColumn + "' because it has already been mapped to the column '" + GetDestinationColumn(sourceColumn) + "'.");
}
else if (ContainsDestinationColumn(destinationColumn) && GetSourceColumn(destinationColumn) != sourceColumn)
{
throw new ArgumentException("The destination column '" + destinationColumn + "' cannot be mapped to source column '" + sourceColumn + "' because it has already been mapped to the column '" + GetSourceColumn(destinationColumn) + "'.");
}
if (columnTransform != null)
{
AddColumnTransform(sourceColumn, columnTransform);
}
}
public bool ContainsDestinationColumn(string destinationColumn)
{
return(DestinationToSource.ContainsKey(destinationColumn) && SourceToDestination.ContainsValue(destinationColumn));
}
public bool ContainsSourceColumn(string sourceColumn)
{
return(SourceToDestination.ContainsKey(sourceColumn) && DestinationToSource.ContainsValue(sourceColumn));
}
public void RemoveDestinationColumn(string destinationColumn)
{
ClearColumnTransforms(DestinationToSource[destinationColumn]);
SourceToDestination.Remove(DestinationToSource[destinationColumn]);
DestinationToSource.Remove(destinationColumn);
}
public void RemoveSourceColumn(string sourceColumn)
{
ClearColumnTransforms(sourceColumn);
DestinationToSource.Remove(SourceToDestination[sourceColumn]);
SourceToDestination.Remove(sourceColumn);
}
public void Clear()
{
SourceToDestination.Clear();
DestinationToSource.Clear();
ColumnTransforms.Clear();
}
