/// <summary>
/// Creates and returns the attribute with the given name in the location
/// specified by the given location string in the given XML element.
/// </summary>
/// <param name="baseElement">The XML element.</param>
/// <param name="location">The location string.</param>
/// <param name="attrName">Name of the attribute.</param>
/// <param name="attrValue">The value to be assigned to the attribute.</param>
/// <param name="documentDefaultNamespace">The default namespace.</param>
/// <returns>returns the attribute with the given name in the location
/// specified by the given location string in the given XML element.</returns>
public static XAttribute CreateAttribute(XElement baseElement, string location, XName attrName, object attrValue, XNamespace documentDefaultNamespace)
{
XElement newLoc = FindLocation(baseElement, location);
if (newLoc == null)
{
if (CanCreateLocation(baseElement, location))
{
newLoc = CreateLocation(baseElement, location);
}
else
{
return(null);
}
}
// check if the attribute does not exist
if (attrName.Namespace.IsEmpty() && attrName.Namespace != documentDefaultNamespace)
{
// i.e., the attribute already exists
if (newLoc.Attribute(attrName) != null)
{
return(null); // we cannot create another one with the same name
}
}
else
{
if (newLoc.Attribute_NamespaceNeutral(attrName) != null) // i.e., the attribute already exists
{
return(null); // we cannot create another one with the same name
}
}
return(newLoc.AddAttributeNamespaceSafe(attrName, attrValue, documentDefaultNamespace));
}
/// <summary>
/// Adds the 'xml:space="preserve"' attribute to the specified element.
/// </summary>
/// <param name="element">Element to add the 'xml:space="preserve"' attribute to</param>
/// <param name="culture">The <see cref="CultureInfo"/> to use for string-formatting values.</param>
/// <returns></returns>
public static XElement AddPreserveSpaceAttribute(XElement element, CultureInfo culture)
{
element.AddAttributeNamespaceSafe(XNamespace.Xml + "space", "preserve", null, culture);
return(element);
}
