private object GetValue(object o)
{
var source = FindSource(o);
object value = null;
if (string.IsNullOrEmpty(this.Path))
{
//当没有指定path时，以源作为value
value = source;
}
else
{
var dtoSource = source as DTObject;
if (dtoSource != null)
{
value = dtoSource.GetValue(this.Path);
}
else
{
value = RuntimeUtil.GetPropertyValue(source, this.Path);
}
}
if (this.Converter != null)
{
value = this.Converter.Convert(value, this.Parameter);
}
return(value);
}
private object GetValueFromSource(object target)
{
if (_source == null)
{
return(null);
}
object value = null;
var ui = _source as UIElement;
if (ui != null)
{
value = ui.GetValue(_sourceProperty);
}
else
{
value = RuntimeUtil.GetPropertyValue(_source, this.PropertyName);
}
if (this.Converter != null)
{
value = this.Converter.Convert(value, this.Parameter);
}
return(value);
}
private void LoadInnerProperty(LoadContext ctx, object obj, string innerName, string attrValue)
{
var current = obj;
var propertyNames = innerName.Split('.');
var lastIndex = propertyNames.Length - 1;
for (var i = 0; i < propertyNames.Length; i++)
{
var propertyName = propertyNames[i];
if (i == lastIndex)
{
ctx.PushObject(current);
ctx.PushProperty(propertyName);
LoadSingleSimple(current.GetType(), current, propertyName, attrValue);
ctx.PushProperty(propertyName);
ctx.PopObject();
}
else
{
var target = RuntimeUtil.GetPropertyValue(current, propertyName);
if (target == null)
{
throw new XamlException("类型" + current.GetType().FullName + "的属性" + propertyName + "值为null,无法赋值");
}
current = target;
}
}
}
private object GetValue(object d)
{
var source = this.SourceFinder.Find(d);
object value = null;
var dtoSource = source as DTObject;
if (dtoSource != null)
{
value = dtoSource.GetValue(this.Path);
}
else
{
value = RuntimeUtil.GetPropertyValue(source, this.Path);
}
if (this.Converter != null)
{
value = this.Converter.Convert(value, this.Parameter);
}
return(value);
}
/// <summary>
/// 根据路径定位source,并返回绑定的属性名称
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
private object LocateSource(object source)
{
var path = this.Path;
if (path.IndexOf(".") == -1)
{
return(source);
}
var propertyNames = path.Split('.');
var value = source;
var lastIndex = propertyNames.Length - 1;
for (var i = 0; i < lastIndex; i++)
{
var propertyName = propertyNames[i];
value = RuntimeUtil.GetPropertyValue(value, propertyName);
if (value == null)
{
break;
}
}
return(value);
}