/// <summary>
/// Get RootElement of the current part.
/// </summary>
/// <param name="part">Current Part</param>
/// <returns>Return Root element of the pass-in part</returns>
public static OpenXmlPartRootElement RootElement(this OpenXmlPart part)
{
if (null == part)
{
throw new ArgumentNullException(nameof(part));
}
if (part is CustomXmlPart)
{
XmlDocument xmlDoc = new XmlDocument();
using (var stream = part.GetStream())
xmlDoc.Load(stream);
if (part.IsBibliographyPart())
{
return(new Sources(xmlDoc.DocumentElement.OuterXml));
}
else if (part.IsInkPart())
{
return(new DocumentFormat.OpenXml.InkML.Ink(xmlDoc.DocumentElement.OuterXml));
}
}
var flag = BindingFlags.Public | BindingFlags.Instance | BindingFlags.FlattenHierarchy;
var properties = part.GetType().GetProperties(flag)
.Where(p => p.PropertyType.IsSubclassOf(typeof(OpenXmlPartRootElement)));
return(null == properties.FirstOrDefault() ?
null : properties.First().GetValue(part, null) as OpenXmlPartRootElement);
}
/// <summary>
/// Get RootElement of the current part.
/// </summary>
/// <param name="part">Current Part</param>
/// <returns>Return Root element of the pass-in part</returns>
public static OpenXmlPartRootElement RootElement(this OpenXmlPart part)
{
if (null == part)
{
throw new ArgumentNullException(nameof(part));
}
if (part is CustomXmlPart)
{
using (var stream = part.GetStream())
{
var xmlDoc = new XmlDocument();
xmlDoc.Load(stream);
if (part.IsBibliographyPart())
{
return(new Sources(xmlDoc.DocumentElement.OuterXml));
}
else if (part.IsInkPart())
{
return(new InkML.Ink(xmlDoc.DocumentElement.OuterXml));
}
}
}
var flag = BindingFlags.Public | BindingFlags.Instance | BindingFlags.FlattenHierarchy;
var property = part.GetType().GetProperties(flag)
.Where(p => p.PropertyType.IsSubclassOf(typeof(OpenXmlPartRootElement)))
.FirstOrDefault();
if (property == null)
{
return(null);
}
try
{
return(property.GetValue(part, null) as OpenXmlPartRootElement);
}
catch (TargetInvocationException e)
{
throw e.InnerException;
}
}
/// <summary>
/// Check if current part is reflectable (with xml content).
/// </summary>
/// <param name="part">Current part</param>
/// <returns>return true if it has non-null root element, otherwise rturn false.</returns>
public static bool IsReflectable(this OpenXmlPart part)
{
if (null == part)
{
throw new ArgumentNullException(nameof(part));
}
if (part.IsBibliographyPart() || part.IsAdditionalCharacteristicsPart() || part.IsInkPart())
{
return(true);
}
var flag = BindingFlags.Public | BindingFlags.Instance | BindingFlags.FlattenHierarchy;
var property = part.GetType().GetProperties(flag)
.Where(p => p.PropertyType.IsSubclassOf(typeof(OpenXmlPartRootElement)))
.FirstOrDefault();
return(null != property);
}