/// <summary>
/// 通过泛型处理模型数据变化（仅仅支持基本数据类型）
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="msg"></param>
public void OnModelValueChangedStuff <T>(PropertyMessage msg)
{
//1、查表获取对应的view，如果没有对应条目则返回
ViewBehaviour <T> _view = null;
BindingItem item = _bindingTable.FindItemByEntityProperty(msg.TargetObject, msg.PropertyName);
if (item.BindedEntity == null ||
item.BindedEntityProperty.Equals("") ||
item.BindedView == null ||
item.BindedViewProperty.Equals(""))
{
return;
}
_view = (ViewBehaviour <T>)item.BindedView;
//2、重置view状态
if (_view.IsViewStateChanged)
{
_view.ResetViewState();
return;
}
//3、更新界面显示
if (!_view.Value.Equals((T)msg.NewValue))
{
_view.RefreshComponent((T)msg.NewValue);
}
}
/// <summary>
/// 添加绑定记录
/// </summary>
/// <param name="entity"></param>
/// <param name="entityProperty"></param>
/// <param name="view"></param>
/// <param name="viewProperty"></param>
public void AddItem(
object entity,
string entityProperty,
object view,
string viewProperty)
{
BindingItem item = new BindingItem();
item.BindedEntity = entity;
item.BindedEntityProperty = entityProperty;
item.BindedView = view;
item.BindedViewProperty = viewProperty;
_items.Add(item);
}
/// <summary>
/// 通过实体对象的属性名称搜索绑定条目
/// </summary>
/// <param name="propertyName"></param>
/// <returns></returns>
public BindingItem FindItemByEntityProperty(object entity, string propertyName)
{
BindingItem empty = new BindingItem();
empty.BindedEntity = null;
empty.BindedEntityProperty = "";
empty.BindedView = null;
empty.BindedViewProperty = null;
foreach (BindingItem item in _items)
{
if (item.BindedEntityProperty.Equals(propertyName) && entity.Equals(item.BindedEntity))
{
return(item);
}
}
return(empty);
}
/// <summary>
/// 当View层数据变化时仅仅更新模型层数据
/// </summary>
/// <param name="msg"></param>
public void OnViewValueChanged(PropertyMessage msg)
{
//1、查找entity属性对应的view组件
BindingItem item = _bindingTable.FindItemByViewProperty(msg.TargetObject, msg.PropertyName);
if (item.BindedEntity == null ||
item.BindedEntityProperty.Equals("") ||
item.BindedView == null ||
item.BindedViewProperty.Equals(""))
{
throw new BindingException("未能找到绑定记录");
}
//2、给entity赋值为组件值
if (msg.NewValue is float)
{
OnViewValueChangedStuff <float>(this.DataEntity, item.BindedEntityProperty, (float)msg.NewValue);
}
else if (msg.NewValue is double)
{
OnViewValueChangedStuff <double>(this.DataEntity, item.BindedEntityProperty, (double)msg.NewValue);
}
else if (msg.NewValue is decimal)
{
OnViewValueChangedStuff <decimal>(this.DataEntity, item.BindedEntityProperty, (decimal)msg.NewValue);
}
else if (msg.NewValue is string)
{
OnViewValueChangedStuff <string>(this.DataEntity, item.BindedEntityProperty, (string)msg.NewValue);
}
else if (msg.NewValue is bool)
{
OnViewValueChangedStuff <bool>(this.DataEntity, item.BindedEntityProperty, (bool)msg.NewValue);
}
else if (msg.NewValue is char)
{
OnViewValueChangedStuff <char>(this.DataEntity, item.BindedEntityProperty, (char)msg.NewValue);
}
else if (msg.NewValue is sbyte)
{
OnViewValueChangedStuff <sbyte>(this.DataEntity, item.BindedEntityProperty, (sbyte)msg.NewValue);
}
else if (msg.NewValue is short)
{
OnViewValueChangedStuff <short>(this.DataEntity, item.BindedEntityProperty, (short)msg.NewValue);
}
else if (msg.NewValue is int)
{
OnViewValueChangedStuff <int>(this.DataEntity, item.BindedEntityProperty, (int)msg.NewValue);
}
else if (msg.NewValue is long)
{
OnViewValueChangedStuff <long>(this.DataEntity, item.BindedEntityProperty, (long)msg.NewValue);
}
else if (msg.NewValue is byte)
{
OnViewValueChangedStuff <byte>(this.DataEntity, item.BindedEntityProperty, (byte)msg.NewValue);
}
else if (msg.NewValue is ushort)
{
OnViewValueChangedStuff <ushort>(this.DataEntity, item.BindedEntityProperty, (ushort)msg.NewValue);
}
else if (msg.NewValue is uint)
{
OnViewValueChangedStuff <uint>(this.DataEntity, item.BindedEntityProperty, (uint)msg.NewValue);
}
else if (msg.NewValue is ulong)
{
OnViewValueChangedStuff <ulong>(this.DataEntity, item.BindedEntityProperty, (ulong)msg.NewValue);
}
}
