public void Initialize(PropertyMapperConfig config)
{
Config = config;
// Create accessor for the column property
var columnProp = typeof(IGenericColumns).GetProperty(config.Column);
if (columnProp == null || columnProp.PropertyType != typeof(TColumn))
{
throw new ArgumentException($"Column not found or type mismatch {config.PropertyName}");
}
ColumnAccessor = ReflectionTool.PropertyAccessor <IGenericColumns, TColumn>(columnProp);
// Retrieve and validate properties
var objectProp = TargetType.GetProperty(config.PropertyName);
if (objectProp == null)
{
throw new ArgumentException($"Target type {TargetType.Name} does not have a property {config.PropertyName}");
}
// Create delegates for the object property as well
ObjectAccessor = CreatePropertyAccessor(objectProp);
}
/// <summary>
/// 创建公共成员
/// </summary>
protected void CreateCommonMember()
{
PropertyInfo[] propertiesSource = SourceType.GetProperties();
foreach (PropertyInfo propSource in propertiesSource)
{
PropertyInfo propDest = TargetType.GetProperty(propSource.Name);
if (propDest != null)
{
// 检查是否已存在或被忽略。
bool ignorePropDest = _propertiesToIgnore.Exists(x => x.Name == propDest.Name) || PropertiesMapping.Exists(x => GetPropertyInfo(x.Item2).Name == propDest.Name);
if (propDest.CanWrite && !ignorePropDest)
{
Type sourceType = propSource.PropertyType;
Type destType = propDest.PropertyType;
bool isList = IsListOf(destType);
if (isList)
{
sourceType = TypeSystem.GetElementType(propSource.PropertyType);
destType = TypeSystem.GetElementType(propDest.PropertyType);
}
var canCreateConfig = CanCreateConfig(sourceType, destType);
if (canCreateConfig.CanCreate)
{
// 只创造现有的关系
Expression expSource = Expression.MakeMemberAccess(paramClassSource, propSource);
ParameterExpression paramDest = Expression.Parameter(TargetType, "t");
Expression expDest = Expression.MakeMemberAccess(paramDest, propDest);
PropertiesMapping.Add(Tuple.Create(expSource, expDest, false, canCreateConfig.MapperName));
}
}
}
}
}
/// <summary>
/// checks rule is valid
/// </summary>
internal void RuleIsValid()
{
if (string.IsNullOrEmpty(TargetKey))
{
throw new ArgumentNullException($"{nameof(TargetKey)} must not be null");
}
if (string.IsNullOrEmpty(PrimaryKey))
{
throw new ArgumentNullException($"{nameof(PrimaryKey)} must not be null");
}
var type = typeof(TEntity);
if (type.GetProperty(PrimaryKey) == null)
{
throw new ArgumentException($"{type.Name} primary key is not found");
}
if (TargetType.GetProperty(TargetKey) == null)
{
throw new ArgumentException($"{TargetType.Name} relation key is not found");
}
else
{
//check targetkey is struct
}
}
public Type GetObjectType()
{
System.Reflection.PropertyInfo pInfo = TargetType.GetProperty(TargetProperty, BindingFlags.Static | BindingFlags.Public);
if (pInfo == null)
{
throw new MissingMemberException(TargetType.ToString(), TargetProperty);
}
return(pInfo.PropertyType);
}
public virtual void SetTargetPropertyValue(string name, object value)
{
var propInfo = TargetType.GetProperty(name);
if (propInfo == null || !propInfo.CanWrite)
{
return;
}
propInfo.SetValue(Target, value, null);
}
public virtual object GetTargetPropertyValue(string name)
{
var propInfo = TargetType.GetProperty(name);
if (!propInfo.CanRead)
{
return(BindingInfo.DoNothing);
}
return(propInfo != null?propInfo.GetValue(Target, null) : null);
}
/// <summary>
/// Provides the implementation for operations that set a value by index. Classes derived from the <see cref="T:System.Dynamic.DynamicObject" /> class can override this method to specify dynamic behavior for operations that access objects by a specified index.
/// </summary>
/// <param name="binder">Provides information about the operation.</param>
/// <param name="indexes">The indexes that are used in the operation. For example, for the sampleObject[3] = 10 operation in C# (sampleObject(3) = 10 in Visual Basic), where sampleObject is derived from the <see cref="T:System.Dynamic.DynamicObject" /> class, <paramref name="indexes[0]" /> is equal to 3.</param>
/// <param name="value">The value to set to the object that has the specified index. For example, for the sampleObject[3] = 10 operation in C# (sampleObject(3) = 10 in Visual Basic), where sampleObject is derived from the <see cref="T:System.Dynamic.DynamicObject" /> class, <paramref name="value" /> is equal to 10.</param>
/// <returns>
/// true if the operation is successful; otherwise, false. If this method returns false, the run-time binder of the language determines the behavior. (In most cases, a language-specific run-time exception is thrown.
/// </returns>
public override bool TrySetIndex(System.Dynamic.SetIndexBinder binder, object[] indexes, object value)
{
try
{
PropertyInfo prop = TargetType.GetProperty("Item", AccessFlags);
prop.SetValue(Target, value, indexes);
return(true);
}
catch (Exception)
{
return(base.TrySetIndex(binder, indexes, value));
}
}
/// <summary>
/// Initialize the type strategy
/// </summary>
public override void Initialize(ProductLinkConfiguration config)
{
base.Initialize(config);
var property = TargetType.GetProperty(PropertyName);
var linkType = property.PropertyType;
// Extract element type from collections
if (typeof(IEnumerable <IProductPartLink>).IsAssignableFrom(linkType))
{
linkType = linkType.GetGenericArguments()[0];
}
EntityMapper.Initialize(linkType, Config);
}
protected override void OnSelectedPropertyChanged()
{
base.OnSelectedPropertyChanged();
if (this.Model.DummyObject == null || this.TargetType == null)
{
this.ValueSetter?.Dispose();
this.ValueSetter = null;
return;
}
if (this.SelectedProperty == null)
{
return;
}
var pi = TargetType.GetProperty(SelectedProperty.Name);
var attr = pi.GetAttribute <DesignElementAttribute>();
this.ValueSetter?.Dispose();
if (string.IsNullOrEmpty(attr.Key))
{
this.ValueSetter = SetterManager.CreateSetter(this.Model.DummyObject, pi);
}
else
{
this.ValueSetter = SetterManager.CreateSetter(this.Model.DummyObject, pi, attr.Key);
}
if (this.ValueSetter != null)
{
(this.ValueSetter as FrameworkElement).Width = 150;
if (this.ValueSetter is ValueBoxSetter vBoxSetter)
{
vBoxSetter.Foreground = Brushes.Black;
vBoxSetter.Background = Brushes.Transparent;
}
BindingHelper.SetBinding(
this.ValueSetter as BaseSetter, BaseSetter.ValueProperty,
this.Model.ValueBinder, PBinder.DirectValueProperty);
}
}
/// <summary>
/// Provides the implementation for operations that get a value by index. Classes derived from the <see cref="T:System.Dynamic.DynamicObject" /> class can override this method to specify dynamic behavior for indexing operations.
/// </summary>
/// <param name="binder">Provides information about the operation.</param>
/// <param name="indexes">The indexes that are used in the operation. For example, for the sampleObject[3] operation in C# (sampleObject(3) in Visual Basic), where sampleObject is derived from the DynamicObject class, <paramref name="indexes[0]" /> is equal to 3.</param>
/// <param name="result">The result of the index operation.</param>
/// <returns>
/// true if the operation is successful; otherwise, false. If this method returns false, the run-time binder of the language determines the behavior. (In most cases, a run-time exception is thrown.)
/// </returns>
public override bool TryGetIndex(System.Dynamic.GetIndexBinder binder, object[] indexes, out object result)
{
try
{
PropertyInfo prop = TargetType.GetProperty("Item", AccessFlags);
result = prop.GetValue(Target, indexes);
if (WrapReturn)
{
result = new DynamicReflector(result)
{
WrapReturn = this.WrapReturn
};
}
return(true);
}
catch (Exception)
{
return(base.TryGetIndex(binder, indexes, out result));
}
}
protected TagsHelper ViewConfig(string properyt)
{
return(new TagsHelper(properyt, ViewPortDescriptors, TargetType, TargetType.GetProperty(properyt)));
}
/// <summary>
/// 视图配置，界面显示
/// </summary>
/// <param name="properyt">实体字段名称</param>
/// <returns></returns>
protected TagsHelper ViewConfig(string properyt)
{
return(new TagsHelper(properyt, ref _htmlTags, TargetType, TargetType.GetProperty(properyt)));
}
protected TagsHelper AttrConfig(string prop)
{
return(new TagsHelper(prop, ContextDescriptors, TargetType, TargetType.GetProperty(prop)));
}
public virtual Type GetTargetPropertyType(string name)
{
var propInfo = TargetType.GetProperty(name);
return(propInfo != null ? propInfo.PropertyType : null);
}