/// <summary>
/// 从HostControl中获得指定类型的视图对象
/// </summary>
/// <typeparam name="T">视图类型</typeparam>
/// <param name="context">上下文环境</param>
/// <param name="result">返回结果</param>
/// <param name="name">视图名称(视图变量名)</param>
/// <returns>当视图类型和视图变量名两个条件都满足时，返回true</returns>
protected BaseView GetTargetView(GridControlViewStateContext <E> context, string name)
{
for (int index = 0; index < context.HostControl.ViewCollection.Count; index++)
{
if (context.HostControl.ViewCollection[index].Name.Equals(name, StringComparison.OrdinalIgnoreCase))
{
return(context.HostControl.ViewCollection[index]);
}
}
return(null);
}
protected bool ExtractTagetView(GridControlViewStateContext <E> context, string name)
{
for (int index = 0; index < context.HostControl.ViewCollection.Count; index++)
{
if (context.HostControl.ViewCollection[index].Name.Equals(name, StringComparison.OrdinalIgnoreCase))
{
TargetView = (V)context.HostControl.ViewCollection[index];
return(true);
}
}
return(false);
}
public override void OnShiftState(GridControlViewStateContext <E> context)
{
if (IsContextTargetState(context) == false)
{
context.CurrentStateComponent = GetNextStateComponet();
context.ExecuteStateShift();
}
else
{
onSaveContextProperties(context.Properties);
onPrepareMainViewUpdate(context);
TargetViewName = onGetCurrentViewName(context.Properties);
if (IsMainViewTarget(context, TargetViewName) == false)
{
if (ExtractTagetView(context, TargetViewName) && this.TargetView != null)
{
onBeforeMainViewUpdate(context);
context.HostControl.MainView = TargetView;
onAfterMainViewUpdate(context);
context.Properties.IsStateFirstLoad[GetCurrentState()] = false;
}
}
else
{
if (context.Properties.IsStateFirstLoad[GetCurrentState()])
{
if (ExtractTagetView(context, TargetViewName) && this.TargetView != null)
{
onBeforeMainViewUpdate(context);
context.HostControl.MainView = TargetView;
onAfterMainViewUpdate(context);
context.Properties.IsStateFirstLoad[GetCurrentState()] = false;
}
}
}
}
}
public virtual bool IsContextTargetState(GridControlViewStateContext <E> context)
{
return(context.CurrentState.Equals(GetCurrentState()));
}
public virtual void onPrepareMainViewUpdate(GridControlViewStateContext <E> context)
{
}
public abstract void onAfterMainViewUpdate(GridControlViewStateContext <E> context);
/// <summary>
/// 判断指定视图是否是当前gridControl的主视图
/// </summary>
/// <typeparam name="T">视图类型</typeparam>
/// <param name="context">上下文环境</param>
/// <param name="name">视图名称(视图变量名)</param>
/// <returns></returns>
protected bool IsMainViewTarget(GridControlViewStateContext <E> context, string name)
{
return(context.HostControl.MainView.Name.Equals(name, StringComparison.OrdinalIgnoreCase));
}
public override void onPrepareMainViewUpdate(GridControlViewStateContext <E> context)
{
base.onPrepareMainViewUpdate(context);
TargetBuilder = ConvertToTargetBuilder <B>();
TargetProperties = ConvertToTargetProperties <P>();
}
public abstract void OnShiftState(GridControlViewStateContext <E> context);
