public static T TryGetAttributeValue <T>(this XElement root, string name, T defaultValue)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
try
{
if (!TryGetAttribute(root, name, out var attribute))
{
return(defaultValue);
}
if (DataConversion.TryConvert(attribute.Value, out T result))
{
return(result);
}
return(defaultValue);
}
catch (Exception)
{
return(defaultValue);
}
}
public static T GetNodeValue <T>(this XElement root, string name)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
var node = GetNode(root, name);
return(DataConversion.Convert <T>(node.Value));
}
public static T GetAttributeValue <T>(this XElement root, string name)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (!TryGetAttribute(root, name, out var attribute))
{
throw new InvalidOperationException($"Не удалось найти ноду с именем '{name}'.");
}
return(DataConversion.Convert <T>(attribute.Value));
}
public static T TryGetNodeValue <T>(this XElement root, string name, T defaultValue)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
var node = IsNodeExists(root, name)
? root.Elements(name).FirstOrDefault()
: null;
if (node == null)
{
return(defaultValue);
}
return(DataConversion.Convert <T>(node.Value));
}
