/// <summary>
/// Sets up the value object for setting to the property
/// </summary>
/// <param name="field"></param>
/// <param name="value"></param>
/// <returns></returns>
public static object PrepareFieldValue(
ImportFieldAttribute field,
PropertyInfo property,
object value)
{
if (property.PropertyType == typeof(string))
{
if (field.EnableTrimming)
{
value = ((string)value).Trim();
}
}
else if (value is IConvertible) // Convert to the type specified by the property
{
// Try to convert the input string value to the proper type
// of the data, only if data type is not string (save extra processing power)
if (property.PropertyType != typeof(string))
{
value = Convert.ChangeType(value, property.PropertyType);
}
}
else
{
} // Custom conversion types
return(value);
}
/// <summary>
/// Determines if a field value to be populated to a field is valid or not
/// </summary>
/// <param name="field"></param>
/// <param name="value"></param>
/// <returns></returns>
public static bool IsFieldValueValid(
ImportFieldAttribute field,
object value)
{
if (field.EnableValidation &&
field.ValidationPattern != null &&
field.ValidationPattern.Length > 0)
{
if (Regex.IsMatch((string)value, field.ValidationPattern))
{
return(true);
}
else
{
return(false);
}
}
return(true);
}
public static void SetPropertyValue(
object entity,
object value,
int fieldIndex)
{
object[] attributes;
// Search the properties for the correct position and fill the appropriate value
foreach (PropertyInfo property in entity.GetType().GetProperties())
{
attributes = property.GetCustomAttributes(
typeof(ImportFieldAttribute), false);
foreach (object attribute in attributes)
{
ImportFieldAttribute field = (ImportFieldAttribute)attribute;
if (field.Position == fieldIndex)
{
if (IsFieldValueValid(field, value))
{
value = PrepareFieldValue(field, property, value);
property.SetValue(entity, value, null);
}
else
{
throw new FieldValidationException(
string.Format(
"Validation of field '{0}' failed with value " +
"'{1}'\nShould match pattern '{2}'",
property.Name,
value,
field.ValidationPattern)
);
}
}
}
}
}
