/// <summary>
/// React on sub model property changes.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void SubModel_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
if (e.PropertyName == "IsActive")
{
ISelectElementSubViewModel v = sender as ISelectElementSubViewModel;
if (v != null && v.IsActive)
{
if (activeSubModel != null)
activeSubModel.IsActive = false;
activeSubModel = sender as ISelectElementSubViewModel;
// update IsSelectionValid
if (activeSubModel.SelectedElement == null)
{
IsSelectionValid = false;
}
else
{
if (selectableElements != null)
{
if (this.selectableElements.Contains(activeSubModel.SelectedElement))
IsSelectionValid = true;
else
IsSelectionValid = false;
}
else
IsSelectionValid = true;
}
}
}
else if (e.PropertyName == "SelectedElement")
{
if (sender == activeSubModel && activeSubModel != null)
{
if (activeSubModel.SelectedElement == null)
{
IsSelectionValid = false;
}
else
{
if (selectableElements != null)
{
if (this.selectableElements.Contains(activeSubModel.SelectedElement))
IsSelectionValid = true;
else
IsSelectionValid = false;
}
else
IsSelectionValid = true;
}
}
}
}
/// <summary>
/// React on sub model property changes.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void SubModel_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
if (e.PropertyName == "IsActive")
{
ISelectElementSubViewModel v = sender as ISelectElementSubViewModel;
if (v != null && v.IsActive)
{
if (activeSubModel != null)
{
activeSubModel.IsActive = false;
}
activeSubModel = sender as ISelectElementSubViewModel;
// update IsSelectionValid
if (activeSubModel.SelectedElement == null)
{
IsSelectionValid = false;
}
else
{
if (selectableElements != null)
{
if (this.selectableElements.Contains(activeSubModel.SelectedElement))
{
IsSelectionValid = true;
}
else
{
IsSelectionValid = false;
}
}
else
{
IsSelectionValid = true;
}
}
}
}
else if (e.PropertyName == "SelectedElement")
{
if (sender == activeSubModel && activeSubModel != null)
{
if (activeSubModel.SelectedElement == null)
{
IsSelectionValid = false;
}
else
{
if (selectableElements != null)
{
if (this.selectableElements.Contains(activeSubModel.SelectedElement))
{
IsSelectionValid = true;
}
else
{
IsSelectionValid = false;
}
}
else
{
IsSelectionValid = true;
}
}
}
}
}
