/// <summary>
/// 生成下拉框控件
/// </summary>
/// <returns></returns>
protected override FrameworkElement CreateEditingElement()
{
var refVI = this.Meta.SelectionViewMeta;
var refTypeMeta = refVI.RefTypeDefaultView.AsWPFView();
var title = refTypeMeta.TitleProperty;
if (title == null)
{
throw new InvalidProgramException(string.Format("{0} 没有设置代表属性，生成下拉控件时出错。", refTypeMeta.Name));
}
//创建 ComboListControl : 使用下拉控件显示
this._cmbList = new ComboListControl
{
RefViewMeta = refTypeMeta,
IsMultiSelection = this.IsMultiSelection,
Name = this.Meta.Name,
};
this._cmbList.InnerListView.CheckItemsChanged += On_ListView_CurrentObjectChanged;
this._cmbList.ListViewSelectionChanged += On_ListView_CurrentObjectChanged;
this._cmbList.DropDownOpened += On_ComboList_DropDownOpened;
this.AddReadOnlyComponent(this._cmbList, ComboBox.IsEnabledProperty, false);
this.ResetBinding(this._cmbList);
this.SetAutomationElement(this._cmbList);
return(this._cmbList);
}
public static ComboListControl CreateComboListControl(ListLogicalView view)
{
var titleProperty = view.Meta.TitleProperty;
if (titleProperty == null) throw new InvalidProgramException(view.EntityType.Name + "类没有设置 Title 属性。");
var ddl = new ComboListControl
{
InnerListView = view,
Name = "下拉列表",
VerticalAlignment = VerticalAlignment.Center,
MinWidth = 150,
};
ddl.DataContext = view;
ddl.SetBinding(ComboListControl.TextProperty, "CurrentObject." + titleProperty);
//当 View 发生 Refreshed 事件时，很可能表示有底层数据改变了，但是没有级联通知到界面上，
//所以当 View 的控件被 Refresh 后，这个下拉框也需要主动进行刷新。
view.Refreshed += (o, e) =>
{
ddl.GetBindingExpression(ComboListControl.TextProperty).UpdateTarget();
};
return ddl;
}
/// <summary>
/// 生成下拉框控件
/// </summary>
/// <returns></returns>
protected override FrameworkElement CreateEditingElement()
{
var refVI = this.Meta.SelectionViewMeta;
var refTypeMeta = refVI.RefTypeDefaultView.AsWPFView();
var title = refTypeMeta.TitleProperty;
if (title == null) throw new InvalidProgramException(string.Format("{0} 没有设置代表属性，生成下拉控件时出错。", refTypeMeta.Name));
//创建 ComboListControl : 使用下拉控件显示
this._cmbList = new ComboListControl
{
RefViewMeta = refTypeMeta,
IsMultiSelection = this.IsMultiSelection,
Name = this.Meta.Name,
};
this._cmbList.InnerListView.CheckItemsChanged += On_ListView_CurrentObjectChanged;
this._cmbList.ListViewSelectionChanged += On_ListView_CurrentObjectChanged;
this._cmbList.DropDownOpened += On_ComboList_DropDownOpened;
this.AddReadOnlyComponent(this._cmbList, ComboBox.IsEnabledProperty, false);
this.ResetBinding(this._cmbList);
this.SetAutomationElement(this._cmbList);
return this._cmbList;
}