/// <summary>
/// a helper function to generate names
/// </summary>
/// <remarks></remarks>
private static string GetSchemaPropertyNameInXmlHelper(object[] propertyAttributes, object value)
{
if (value != null)
{
foreach (object attribute in propertyAttributes)
{
if (attribute is System.Xml.Serialization.XmlAttributeAttribute)
{
return("@" + ((System.Xml.Serialization.XmlAttributeAttribute)attribute).AttributeName);
}
if (attribute is System.Xml.Serialization.XmlElementAttribute)
{
System.Xml.Serialization.XmlElementAttribute elementAttribute = (System.Xml.Serialization.XmlElementAttribute)attribute;
Type elementType = elementAttribute.Type;
if (elementType == null || elementType.IsInstanceOfType(value))
{
if (value is XmlSchemaObject)
{
string itemName = GetSchemaItemName((XmlSchemaObject)value);
if (itemName.Length > 0)
{
return(String.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}[@name='{1}']", elementAttribute.ElementName, itemName));
}
}
return(elementAttribute.ElementName);
}
}
if (attribute is System.Xml.Serialization.XmlAnyAttributeAttribute)
{
if (value is XmlAttribute)
{
return("@" + ((XmlAttribute)value).LocalName);
}
}
if (attribute is System.Xml.Serialization.XmlAnyElementAttribute)
{
if (value is XmlElement)
{
return(((XmlElement)value).LocalName);
}
}
if (attribute is System.Xml.Serialization.XmlTextAttribute)
{
if (value is XmlText)
{
return(((XmlText)value).Name);
}
}
}
}
return(String.Empty);
}
/// <summary>
/// Helper method for writing the XML element.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="property">The property.</param>
/// <param name="flow">The flow.</param>
private void WriteXmlElement(XmlWriter writer, PropertyDescriptor property, object flow)
{
IEnumerable <System.Xml.Serialization.XmlElementAttribute> attribs = property.Attributes.OfType <System.Xml.Serialization.XmlElementAttribute>();
System.Xml.Serialization.XmlElementAttribute xmlAttrib = attribs.ElementAtOrDefault(0);
if (xmlAttrib != null)
{
object prop = property.GetValue(flow);
if (prop != null)
{
var serializer = Serialization.XmlSerializerFactory.GetSerializer(prop.GetType(), null);
serializer.Serialize(writer, prop);
}
}
}
public void Remove(System.Xml.Serialization.XmlElementAttribute attribute)
{
}
public void Insert(int index, System.Xml.Serialization.XmlElementAttribute attribute)
{
}
public int IndexOf(System.Xml.Serialization.XmlElementAttribute attribute)
{
return(default(int));
}
public bool Contains(System.Xml.Serialization.XmlElementAttribute attribute)
{
return(default(bool));
}
/// <summary>
/// 根据映射方式获取实体或匿名对象的字段以及对应值的 Dictionary 列表
/// </summary>
/// <param name="item">实体或匿名实体</param>
/// <param name="smartMappingType">映射方式</param>
/// <returns>字段或属性名称，值列表</returns>
public static Dictionary <string, object> GetColumnDic(object item, FrameMappingType smartMappingType)
{
Type itemType = item.GetType();
Dictionary <string, object> list = new Dictionary <string, object>();
switch (smartMappingType)
{
case FrameMappingType.FrameAttributePublic: ////公有特性
case FrameMappingType.FrameAttributePrivate: ////私有特性
case FrameMappingType.FrameAttribute: ////根据特性映射，不区分公有私有
{
////根据特性标识设置属性
foreach (PropertyInfo propertyInfo in FrameReflection.GetPropertyInfoByAttribute <FrameColumnMappingAttributes>(itemType, smartMappingType))
{
FrameColumnMappingAttributes attribute = Attribute.GetCustomAttribute(propertyInfo, typeof(FrameColumnMappingAttributes), false) as FrameColumnMappingAttributes;
object value = propertyInfo.GetValue(item, null);
list.Add(attribute.ColumnName, value);
}
////根据特性标识设置字段
foreach (FieldInfo fieldInfo in FrameReflection.GetFieldInfoByAttribute <FrameColumnMappingAttributes>(itemType, smartMappingType))
{
FrameColumnMappingAttributes attribute = Attribute.GetCustomAttribute(fieldInfo, typeof(FrameColumnMappingAttributes), false) as FrameColumnMappingAttributes;
object value = fieldInfo.GetValue(item);
list.Add(attribute.ColumnName, value);
}
}
break;
case FrameMappingType.XmlElementPublic: ////公有XmlElement
case FrameMappingType.XmlElementPrivate: ////私有XmlElement
case FrameMappingType.XmlElement: ////根据XmlElement映射，不区分公有私有
{
////根据特性标识设置属性
foreach (PropertyInfo propertyInfo in FrameReflection.GetPropertyInfoByAttribute <System.Xml.Serialization.XmlElementAttribute>(itemType, smartMappingType))
{
System.Xml.Serialization.XmlElementAttribute attribute = Attribute.GetCustomAttribute(propertyInfo, typeof(System.Xml.Serialization.XmlElementAttribute), false) as System.Xml.Serialization.XmlElementAttribute;
object value = propertyInfo.GetValue(item, null);
list.Add(attribute.ElementName, value);
}
////根据特性标识设置字段
foreach (FieldInfo fieldInfo in FrameReflection.GetFieldInfoByAttribute <System.Xml.Serialization.XmlElementAttribute>(itemType, smartMappingType))
{
System.Xml.Serialization.XmlElementAttribute attribute = Attribute.GetCustomAttribute(fieldInfo, typeof(System.Xml.Serialization.XmlElementAttribute), false) as System.Xml.Serialization.XmlElementAttribute;
object value = fieldInfo.GetValue(item);
list.Add(attribute.ElementName, value);
}
}
break;
case FrameMappingType.Field: ////根据字段映射，私有公有均可
case FrameMappingType.FieldPrivate: ////根据私有字段映射
case FrameMappingType.FieldPublic: ////根据公有字段映射
{
foreach (FieldInfo fieldInfo in FrameReflection.GetFieldInfos(itemType, smartMappingType))
{
object value = fieldInfo.GetValue(item);
list.Add(fieldInfo.Name, value);
}
}
break;
case FrameMappingType.Property: ////根据属性映射 私有公有均可
case FrameMappingType.PropertyPublic: ////根据公有属性映射
case FrameMappingType.ProertyPrivate: ////根据私有属性映射
{
foreach (PropertyInfo propertyInfo in FrameReflection.GetPropertyInfos(itemType, smartMappingType))
{
object value = propertyInfo.GetValue(item, null);
list.Add(propertyInfo.Name, value);
}
}
break;
}
return(list);
}
/// <summary>
/// 由一行数据生成一个实体
/// </summary>
/// <typeparam name="T">目标实体类型</typeparam>
/// <param name="dataRow">数据行</param>
/// <param name="smartMappingType">反射方式</param>
/// <param name="item">已实例化的实体</param>
/// <param name="propertyInfos">属性</param>
/// <param name="fieldInfos">字段</param>
private static void GetEntity <T>(this DataRow dataRow, FrameMappingType smartMappingType, ref T item, PropertyInfo[] propertyInfos = null, FieldInfo[] fieldInfos = null)
{
Type itemType = item.GetType();
switch (smartMappingType)
{
case FrameMappingType.FrameAttributePublic: ////在公有字段或属性中查找特性
case FrameMappingType.FrameAttributePrivate: ////在私有字段或属性中查找特性
case FrameMappingType.FrameAttribute: ////在所有字段或属性中查找特性
{
////设置属性的值
foreach (PropertyInfo propertyInfo in propertyInfos = propertyInfos != null ? propertyInfos : FrameReflection.GetPropertyInfoByAttribute <FrameColumnMappingAttributes>(itemType, smartMappingType))
{
FrameColumnMappingAttributes attribute = Attribute.GetCustomAttribute(propertyInfo, typeof(FrameColumnMappingAttributes), false) as FrameColumnMappingAttributes;
if (dataRow.Table.Columns.Contains(attribute.ColumnName))
{
object value = dataRow[attribute.ColumnName];
if (value == null || value.ToString().Trim() == string.Empty)
{
propertyInfo.SetValue(item, attribute.DefaultVale, null);
}
else
{
propertyInfo.SetValue(item, (value.GetType() == propertyInfo.PropertyType ? value : FrameReflection.ConvertTo(value.ToString().Trim(), propertyInfo.PropertyType)), null);
}
}
else
{
propertyInfo.SetValue(item, attribute.DefaultVale, null);
}
}
////设置字段的值
foreach (FieldInfo fieldInfo in fieldInfos = fieldInfos != null ? fieldInfos : FrameReflection.GetFieldInfoByAttribute <FrameColumnMappingAttributes>(itemType, smartMappingType))
{
FrameColumnMappingAttributes attribute = Attribute.GetCustomAttribute(fieldInfo, typeof(FrameColumnMappingAttributes), false) as FrameColumnMappingAttributes;
if (dataRow.Table.Columns.Contains(attribute.ColumnName))
{
object value = dataRow[attribute.ColumnName];
if (value == null || value.ToString().Trim() == string.Empty)
{
fieldInfo.SetValue(item, attribute.DefaultVale);
}
else
{
fieldInfo.SetValue(item, (value.GetType() == fieldInfo.FieldType ? value : FrameReflection.ConvertTo(value.ToString().Trim(), fieldInfo.FieldType)));
}
}
else
{
fieldInfo.SetValue(item, attribute.DefaultVale);
}
}
}
break;
case FrameMappingType.XmlElement:
case FrameMappingType.XmlElementPrivate:
case FrameMappingType.XmlElementPublic:
{
////设置属性的值
foreach (PropertyInfo propertyInfo in propertyInfos = propertyInfos != null ? propertyInfos : FrameReflection.GetPropertyInfoByAttribute <System.Xml.Serialization.XmlElementAttribute>(itemType, smartMappingType))
{
System.Xml.Serialization.XmlElementAttribute attribute = Attribute.GetCustomAttribute(propertyInfo, typeof(System.Xml.Serialization.XmlElementAttribute), false) as System.Xml.Serialization.XmlElementAttribute;
if (dataRow.Table.Columns.Contains(attribute.ElementName))
{
object value = dataRow[attribute.ElementName];
if (value == null || value.ToString().Trim() == string.Empty)
{
propertyInfo.SetValue(item, null, null);
}
else
{
propertyInfo.SetValue(item, (value.GetType() == propertyInfo.PropertyType ? value : FrameReflection.ConvertTo(value.ToString().Trim(), propertyInfo.PropertyType)), null);
}
}
else
{
propertyInfo.SetValue(item, null, null);
}
}
////设置字段的值
foreach (FieldInfo fieldInfo in fieldInfos = fieldInfos != null ? fieldInfos : FrameReflection.GetFieldInfoByAttribute <System.Xml.Serialization.XmlElementAttribute>(itemType, smartMappingType))
{
System.Xml.Serialization.XmlElementAttribute attribute = Attribute.GetCustomAttribute(fieldInfo, typeof(System.Xml.Serialization.XmlElementAttribute), false) as System.Xml.Serialization.XmlElementAttribute;
if (dataRow.Table.Columns.Contains(attribute.ElementName))
{
object value = dataRow[attribute.ElementName];
if (value == null || value.ToString().Trim() == string.Empty)
{
fieldInfo.SetValue(item, null);
}
else
{
fieldInfo.SetValue(item, (value.GetType() == fieldInfo.FieldType ? value : FrameReflection.ConvertTo(value.ToString().Trim(), fieldInfo.FieldType)));
}
}
else
{
fieldInfo.SetValue(item, null);
}
}
}
break;
case FrameMappingType.Field: ////按字段映射，不区分公有私有
case FrameMappingType.FieldPrivate: ////按私有字段映射
case FrameMappingType.FieldPublic: ////按公有字段映射
{
////设置字段的值
foreach (FieldInfo fieldInfo in fieldInfos = fieldInfos != null ? fieldInfos : FrameReflection.GetFieldInfos(itemType, smartMappingType))
{
if (dataRow.Table.Columns.Contains(fieldInfo.Name))
{
object value = dataRow[fieldInfo.Name];
if (value != null && value.ToString().Trim() != string.Empty)
{
fieldInfo.SetValue(item, (value.GetType() == fieldInfo.FieldType ? value : FrameReflection.ConvertTo(value.ToString(), fieldInfo.FieldType)));
}
}
}
}
break;
case FrameMappingType.Property:
case FrameMappingType.ProertyPrivate:
case FrameMappingType.PropertyPublic:
{
////设置属性的值
foreach (PropertyInfo propertyInfo in propertyInfos = propertyInfos != null ? propertyInfos : FrameReflection.GetPropertyInfos(itemType, smartMappingType))
{
if (dataRow.Table.Columns.Contains(propertyInfo.Name))
{
object value = dataRow[propertyInfo.Name];
if (value != null && value.ToString().Trim() != string.Empty)
{
propertyInfo.SetValue(item, (value.GetType() == propertyInfo.PropertyType ? value : FrameReflection.ConvertTo(value.ToString(), propertyInfo.PropertyType)), null);
}
}
}
}
break;
}
}
public int IndexOf(System.Xml.Serialization.XmlElementAttribute attribute)
{
throw null;
}
public bool Contains(System.Xml.Serialization.XmlElementAttribute attribute)
{
throw null;
}
