/// <summary>
/// Adds a column to the schema, using the given definition to define it.
/// </summary>
/// <param name="definition">The definition of the column to add.</param>
/// <param name="window">Describes the column</param>
/// <returns>The current schema.</returns>
public FixedLengthSchema AddColumn(ColumnDefinition definition, Window window)
{
if (window == null)
{
throw new ArgumentNullException("window");
}
schema.AddColumn(definition);
windows.Add(window);
totalWidth += window.Width;
return this;
}
/// <summary>
/// Adds a column to the schema, using the given definition to define it.
/// </summary>
/// <param name="definition">The definition of the column to add.</param>
/// <returns>The current schema.</returns>
public SeparatedValueSchema AddColumn(ColumnDefinition definition)
{
if (definition == null)
{
throw new ArgumentNullException("definition");
}
if (ordinals.ContainsKey(definition.ColumnName))
{
throw new ArgumentException(Resources.DuplicateColumnName, "definition");
}
addColumn(definition);
return this;
}
private void addColumn(ColumnDefinition definition)
{
definitions.Add(definition);
ordinals.Add(definition.ColumnName, definitions.Count - 1);
}
private void addColumn(ColumnDefinition definition)
{
definitions.Add(definition);
ordinals.Add(definition.ColumnName, definitions.Count - 1);
}
private static object parseValue(ColumnDefinition definition, object value)
{
// Let the definition interpret nulls.
if (value == null)
{
return definition.Parse(null);
}
// If the value is a string, give the parser a chance to interpret it.
string asString = value as String;
if (asString != null)
{
return definition.Parse(asString);
}
// If the value's type differs from the expected type,
// convert it to a string and try to interpret it.
if (value.GetType() != definition.ColumnType)
{
return Convert.ChangeType(value, definition.ColumnType);
}
// Otherwise, the type of the value matches the expected type.
return value;
}
