public override void ApplyBind()
{
if (Target is DependencyObject dpo)
{
dpo.DependencyPropertyChanged += Dpo_DependencyPropertyChanged;
if (Model == BindingMode.TwoWay)
{
var dpotValue = TargetPath.GetValueFromSteptSub(Target, 1);//倒数第二层
if (dpotValue == null)
{
throw new ArgumentException("绑定目标属性为空");
}
if (dpotValue is DependencyObject dpotDpValue)
{
bindDp = dpotDpValue;
bindDp.DependencyPropertyChanged += Sdpo_DependencyPropertyChanged;//双向绑定监视属性
}
}
}
else
{
throw new ArgumentException("Target必须要继承于DependencyObject");
}
base.ApplyBind();
}
public override void ApplyBind()
{
if (Source is DependencyObject dpo)
{
if (Model == BindingMode.TwoWay)
{
if (Target is DependencyObject dpot)
{
var dpotValue = TargetPath.GetValueFromSteptSub(Target, 1);//倒数第二层
if (dpotValue == null)
{
throw new ArgumentException("绑定目标属性为空");
}
if (dpotValue is DependencyObject dpotDpValue)
{
bindDp = dpotDpValue;
bindDp.DependencyPropertyChanged += Dpot_PropertyChanged;//双向绑定监视属性
}
else
{
throw new ArgumentException("绑定目标属性不为依赖属性");
}
}
else
{
throw new ArgumentException($"双向绑定时,{nameof(Target)}必须是DependencyObject");
}
}
dpo.DependencyPropertyChanged += Dpo_PropertyChanged;
}
else
{
throw new ArgumentException($"DependencyBinding应用绑定出错,属性{nameof(Source)}不为DependencyObject");
}
base.ApplyBind();
}