/// <summary>Initialize</summary>
public void Initialize(ClassToDataTableConverterAttribute attribute)
{
// No data needed from the attribute
if (attribute.TargetPropertyType == null)
{
throw new ArgumentException($"The {nameof(ChangeTypeCtodTypeConverter)} converter will not work unless you specify a TargetPropertyType");
}
OutputType = attribute.TargetPropertyType;
ConversionType = Nullable.GetUnderlyingType(attribute.TargetPropertyType) ?? attribute.TargetPropertyType;
}
/// <summary>Initialize</summary>
public void Initialize(ClassToDataTableConverterAttribute attribute)
{
// No data needed from the attribute
}
public void Initialize(ClassToDataTableConverterAttribute attribute)
{
}
/// <summary>Adds one converter to the column map.</summary>
/// <param name="newMap">The column map</param>
/// <param name="oneCustomAttribute">The attribute that specified the type converter. We need to use it to initialize the converter.</param>
private void AddOneConverterToTheMap(ClassPropertyToDataTableColumnMap newMap, ClassToDataTableConverterAttribute oneCustomAttribute)
{
newMap.Converter = oneCustomAttribute.TypeConverter.HelpCreateAndCastToInterface <IClassToDataTableTypeConverter>(
$"The '{newMap.PropInformation.Name}' property on the {_theClassType.Name} class specified a converter, but there is a problem!");
newMap.Converter.Initialize(oneCustomAttribute);
newMap.OutputType = newMap.Converter.OutputType;
if (_validDataTableDataTypes.IsValidType(newMap.OutputType) == false)
{
throw new ArgumentException($"The {newMap.PropInformation.Name} property on the {_theClassType.Name} class is using a converter " +
$"with an output type of {newMap.OutputType.Name}, which is NOT supported by DataTable. Please refer to this link " +
"for more information about valid DataTable types: " +
"https://docs.microsoft.com/en-us/dotnet/api/system.data.datacolumn.datatype?view=net-5.0#remarks");
}
if (newMap.Converter.CanConvert(newMap.PropInformation.PropertyType) == false)
{
throw new ArgumentException($"The {newMap.PropInformation.Name} property on the {_theClassType.Name} class " +
$"has a {nameof(ClassToDataTableConverterAttribute)}, but it cannot convert a data of the " +
$"{newMap.PropInformation.PropertyType.Name} type!");
}
}
