static public string ConvertAttributeToString(XPathNavigator in_element, string in_attribute_name, int in_attribute_type)
{
string attribute = in_element.GetAttribute(in_attribute_name, "");
if (string.IsNullOrEmpty(attribute) && (in_attribute_type & atObligatory) != 0)
{
IXmlLineInfo info = (IXmlLineInfo)in_element;
XMLParserException exception = new XMLParserException(info.LineNumber, info.LinePosition);
exception.SetAttributeNotFoundError(in_attribute_name);
throw exception;
}
else
{
return(attribute);
}
}
/// <summary>
/// Coverts XML attribute value to integer using a default value
/// </summary>
/// <param name="in_element"></param>
/// <param name="in_attribute_name"></param>
/// <param name="in_attribute_type"></param>
/// <param name="in_default_value"></param>
/// <returns></returns>
static public int ConvertAttributeToInt(XPathNavigator in_element, string in_attribute_name, int in_attribute_type)
{
string attribute = in_element.GetAttribute(in_attribute_name, "");
// check if attribute exists
if (string.IsNullOrEmpty(attribute) && (in_attribute_type & atObligatory) != 0)
{
IXmlLineInfo info = (IXmlLineInfo)in_element;
XMLParserException exception = new XMLParserException(info.LineNumber, info.LinePosition);
exception.SetAttributeNotFoundError(in_attribute_name);
throw exception;
}
else
{
// convert string to int
int int_buffer = 0;
int_buffer = int.Parse(attribute.Trim());
return(int_buffer);
}
}
/// <summary>
/// Coverts XML attribute value to integer using a default value
/// </summary>
/// <param name="in_element"></param>
/// <param name="in_attribute_name"></param>
/// <param name="in_attribute_type"></param>
/// <param name="in_default_value"></param>
/// <returns></returns>
static public int ConvertAttributeToIntDefault(XPathNavigator in_element, string in_attribute_name, int in_attribute_type, int in_default_value)
{
string attribute = in_element.GetAttribute(in_attribute_name, "");
// check if attribute exists
if (!string.IsNullOrEmpty(attribute))
{
// convert string to int
int int_buffer = 0;
if (int.TryParse(attribute.Trim(), out int_buffer))
{
return(int_buffer);
}
else
{
// throw an exception if value is invalid
IXmlLineInfo info = (IXmlLineInfo)in_element;
XMLParserException exception = new XMLParserException(info.LineNumber, info.LinePosition);
exception.SetInvalidAttributeValue(in_attribute_name);
throw exception;
}
}
else
{
// if attribute is obligatory throw an exception
if ((in_attribute_type & atObligatory) != 0)
{
IXmlLineInfo info = (IXmlLineInfo)in_element;
XMLParserException exception = new XMLParserException(info.LineNumber, info.LinePosition);
exception.SetAttributeNotFoundError(in_attribute_name);
throw exception;
}
else
{
return(in_default_value);
}
}
}
/// <summary>
/// Converts string (attribute value) to enum or any object
/// </summary>
/// <param name="in_element"></param>
/// <param name="in_attribute_name"></param>
/// <param name="in_attribute_type"></param>
/// <returns></returns>
public T ConvertAttributeToEnum(XPathNavigator in_element, string in_attribute_name, int in_attribute_type)
{
string attribute = in_element.GetAttribute(in_attribute_name, "");
// check if attribute exists
if (!string.IsNullOrEmpty(attribute))
{
// convert to enum
try
{
return(this[attribute]);
}
catch
{
// throw an exception if attribute value is invalid
IXmlLineInfo info = (IXmlLineInfo)in_element;
XMLParserException exception = new XMLParserException(info.LineNumber, info.LinePosition);
exception.SetInvalidAttributeValue(in_attribute_name);
throw exception;
}
}
else
{
// if attribute is obligatory throw an exception
if ((in_attribute_type & atObligatory) != 0)
{
IXmlLineInfo info = (IXmlLineInfo)in_element;
XMLParserException exception = new XMLParserException(info.LineNumber, info.LinePosition);
exception.SetAttributeNotFoundError(in_attribute_name);
throw exception;
}
else
{
return(default(T));
}
}
}