/// <summary>
/// 设置该属性为动态检查是否只读
/// </summary>
/// <param name="meta"></param>
/// <param name="indicator">动态根据此属性来检查是否只读。</param>
/// <returns></returns>
public static WPFEntityPropertyViewMeta Readonly(this WPFEntityPropertyViewMeta meta, IManagedProperty indicator)
{
meta.ReadonlyIndicator.Status = ReadOnlyStatus.Dynamic;
meta.ReadonlyIndicator.Property = indicator;
return(meta);
}
/// <summary>
/// 设置该属性需要显示在列表中，并设置其列表中的信息
/// </summary>
/// <param name="meta"></param>
/// <param name="gridWidth">
/// 用于初始化表格控件的宽度属性
/// </param>
/// <returns></returns>
public static WPFEntityPropertyViewMeta ShowInList(this WPFEntityPropertyViewMeta meta, double?gridWidth = null)
{
meta.ShowInWhere |= ShowInWhere.List;
meta.GridWidth = gridWidth;
return(meta);
}
/// <summary>
/// 设置该属性可显示的范围
/// </summary>
/// <param name="meta"></param>
/// <param name="value"></param>
/// <returns></returns>
public static WPFEntityPropertyViewMeta ShowIn(this WPFEntityPropertyViewMeta meta, ShowInWhere value)
{
if (value == ShowInWhere.Hide)
{
meta.ShowInWhere = ShowInWhere.Hide;
}
else
{
meta.ShowInWhere |= value;
}
return(meta);
}
/// <summary>
/// 设置该属性在表单中显示时的详细信息
///
/// 注意，并不是所有属性在所有模式下都有用，所以请选择性设置。
/// </summary>
/// <param name="meta"></param>
/// <param name="contentWidth">
/// 表单中该属性所占的格子宽度。
///
/// 如果值在 0 到 1 之间，表示百分比，只有 DetailLayoutMode.AutoGrid 模式下可用。
/// 否则表示绝对值。
///
/// 不指定，则使用系统默认值。
/// </param>
/// <param name="height">
/// 表单中该属性所占的总高度
/// 不指定，则使用系统默认宽度。
/// </param>
/// <param name="labelSize">
/// 在 DetailPanel 中显示的 Label 的宽度或者高度。
/// 不指定，则使用系统默认值。
/// </param>
/// <param name="asHorizontal">
/// 配置 DetailPanel 中 Label 与 Editor 的布局方向。true：横向；false：竖向。
/// 不指定，则使用系统默认值。
/// </param>
/// <param name="needNewLine">
/// 指定某个属性在表单中是否需要开启新行。
/// 此属性只在 DetailLayoutMode.Wrapping 下有用。
/// </param>
/// <param name="columnSpan">
/// 表单中该属性所占的列数。
/// 只在 DetailLayoutMode.AutoGrid 模式下有用。
/// </param>
/// <returns></returns>
public static WPFEntityPropertyViewMeta ShowInDetail(this WPFEntityPropertyViewMeta meta,
//common
double?contentWidth = null, double?height = null, double?labelSize = null, bool?asHorizontal = null,
//WrappingMode
bool needNewLine = false,
//AutoGridMode
int?columnSpan = null
)
{
meta.ShowInWhere |= ShowInWhere.Detail;
meta.DetailLabelSize = labelSize;
meta.DetailContentWidth = contentWidth;
meta.DetailHeight = height;
meta.DetailColumnsSpan = columnSpan;
meta.DetailNewLine = needNewLine;
meta.DetailAsHorizontal = asHorizontal;
return(meta);
}
/// <summary>
/// 设置该属性为导航项。
/// 此时，如果该属性变更，会自动触发导航查询
/// </summary>
/// <param name="meta"></param>
/// <returns></returns>
public static NavigationPropertyMeta FireNavigation(this WPFEntityPropertyViewMeta meta)
{
meta.NavigationMeta = new NavigationPropertyMeta();
return(meta.NavigationMeta);
}
/// <summary>
/// 如果这是一个引用属性，则可以指定一个额外的冗余属性来进行显示。
/// </summary>
/// <param name="meta"></param>
/// <param name="refDelegate"></param>
/// <returns></returns>
public static WPFEntityPropertyViewMeta DisplayRefBy(this WPFEntityPropertyViewMeta meta, IManagedProperty refDelegate)
{
meta.DisplayDelegate = refDelegate;
return(meta);
}
/// <summary>
/// 设置属性的编辑器
/// </summary>
/// <param name="meta"></param>
/// <param name="editorName"></param>
/// <returns></returns>
public static WPFEntityPropertyViewMeta UseEditor(this WPFEntityPropertyViewMeta meta, string editorName)
{
meta.EditorName = editorName;
return(meta);
}
public static bool? GetNeedSummary(WPFEntityPropertyViewMeta meta)
{
return meta.GetPropertyOrDefault<bool?>(PropertyMetaNeedSummary);
}
/// <summary>
/// 显式指明一个属性是否需要进行合计。
/// </summary>
/// <param name="meta"></param>
/// <param name="value">true: 合计； false: 不合计； null:根据类型来判断。</param>
/// <returns></returns>
public static WPFEntityPropertyViewMeta Summarize(this WPFEntityPropertyViewMeta meta, bool?value)
{
TreeColumn.SetNeedSummary(meta, value);
return(meta);
}
/// <summary>
/// 设置该属性是否为只读
/// </summary>
/// <param name="meta"></param>
/// <param name="value"></param>
/// <returns></returns>
public static WPFEntityPropertyViewMeta Readonly(this WPFEntityPropertyViewMeta meta, bool value = true)
{
meta.ReadonlyIndicator.Status = value ? ReadOnlyStatus.ReadOnly : ReadOnlyStatus.None;
return(meta);
}
/// <summary>
/// 检测某个实体对象的某个实体属性是否可以只读。
/// </summary>
/// <param name="entity"></param>
/// <param name="property"></param>
/// <returns></returns>
internal static bool CheckIsReadOnly(Entity entity, WPFEntityPropertyViewMeta property)
{
//类指明为只读
var indicator = property.ReadonlyIndicator;
if (indicator.Status == ReadOnlyStatus.ReadOnly || property.Owner.NotAllowEdit) { return true; }
//检测动态属性
if (indicator.Status == ReadOnlyStatus.Dynamic && entity != null)
{
return (bool)entity.GetProperty(indicator.Property);
}
return false;
}
protected virtual string ReadProperty(WPFEntityPropertyViewMeta property)
{
var data = string.Empty;
try
{
if (property.IsReference)
{
var displayPath = property.DisplayPath();
var value = ObjectHelper.GetPropertyValue(this._currentRow, displayPath);
if (value != null) data = value.ToString();
}
else
{
var mp = property.PropertyMeta.ManagedProperty;
if (mp != null)
{
var value = this._currentRow.GetProperty(mp);
if (value != null)
{
if (TypeHelper.IsEnumNullable(mp.PropertyType))
{
data = EnumViewModel.EnumToLabel((Enum)value).Translate();
}
else
{
data = value.ToString();
}
}
}
}
}
catch
{
//尽量尝试读取值，读取出错，则忽略错误。
}
return data;
}
internal static void SetNeedSummary(WPFEntityPropertyViewMeta meta, bool? value)
{
meta.SetExtendedProperty(PropertyMetaNeedSummary, value);
}
/// <summary>
/// 在所有控件生成后，为他们的可见性进行属性绑定
/// </summary>
private void BindVisibility(WPFEntityPropertyViewMeta meta)
{
var visibilityIndicator = meta.VisibilityIndicator;
if (visibilityIndicator.IsDynamic)
{
Binding visibleBinding = new Binding(visibilityIndicator.Property.Name);
visibleBinding.Mode = BindingMode.OneWay;
visibleBinding.Converter = new BooleanToVisibilityConverter();
this.SetBinding(UIElement.VisibilityProperty, visibleBinding);
}
}
/// <summary>
/// 设置属性的显示名称
/// </summary>
/// <param name="meta"></param>
/// <param name="label"></param>
/// <returns></returns>
public static WPFEntityPropertyViewMeta HasLabel(this WPFEntityPropertyViewMeta meta, string label)
{
meta.Label = label;
return(meta);
}
private void SetLayoutValues(DetailLogicalView detailView, WPFEntityPropertyViewMeta property)
{
if (property.DetailAsHorizontal != null)
{
var direction = property.DetailAsHorizontal.Value ? Orientation.Horizontal : Orientation.Vertical;
this.SetIfNonLocal(OrientationProperty, direction);
}
if (property.DetailColumnsSpan != null)
{
this.SetIfNonLocal(Grid.ColumnSpanProperty, property.DetailColumnsSpan.Value);
}
var labelSize = property.DetailLabelSize ?? detailView.Meta.DetailLabelSize;
if (labelSize != null)
{
if (this.Orientation == Orientation.Horizontal)
{
this.SetIfNonLocal(LabelWidthProperty, labelSize.Value);
}
else
{
this.SetIfNonLocal(LabelHeightProperty, labelSize.Value);
}
}
if (property.DetailContentWidth != null)
{
if (!this.IsLocalValue(ContentWidthProperty))
{
var value = property.DetailContentWidth.Value;
//0-1 之间表示相对值，否则表示绝对值。
if (value > 0 && value < 1)
{
value = value / (1 - value);
this.ContentWidth = new GridLength(value, GridUnitType.Star);
}
else
{
this.ContentWidth = new GridLength(value);
}
}
}
if (property.DetailHeight != null)
{
this.SetIfNonLocal(HeightProperty, property.DetailHeight.Value);
}
}
protected internal virtual void Initialize(WPFEntityPropertyViewMeta propertyInfo)
{
this.Meta = propertyInfo;
}