public void Add(params object[] propertys)
{
if (propertys == null)
{
return;
}
foreach (object obj in propertys)
{
if (obj == null)
{
continue;
}
if (obj is string)
{
Add(new OutputExpression(obj as string));
}
else if (obj is IPropertyExpression)
{
IPropertyExpression propertyExpression = (IPropertyExpression)obj;
Add(new OutputExpression(propertyExpression.PropertyName, propertyExpression.GroupFunction));
}
else if (obj is IOutputExpression)
{
IOutputExpression outputExpression = (IOutputExpression)obj;
Add(outputExpression);
}
else if (obj is IEnumerable <string> )
{
foreach (string s in obj as IEnumerable <string> )
{
Add(new OutputExpression(s));
}
}
else if (obj is IEnumerable <IOutputExpression> )
{
foreach (IOutputExpression s in obj as IEnumerable <IOutputExpression> )
{
Add(s);
}
}
else if (obj is IEnumerable <IPropertyExpression> )
{
foreach (IPropertyExpression s in obj as IEnumerable <IPropertyExpression> )
{
Add(new OutputExpression(s.PropertyName, s.GroupFunction));
}
}
else
{
throw new Exception("不支持的类型");
}
}
}
public void Insert(int index, IOutputExpression item)
{
Items.Insert(index, item);
}
public int IndexOf(IOutputExpression item)
{
return(Items.IndexOf(item));
}
public void Add(IOutputExpression item)
{
Items.Add(item);
}
public bool Remove(IOutputExpression item)
{
return(Items.Remove(item));
}
public bool Contains(IOutputExpression item)
{
return(Items.Contains(item));
}
