/// <summary>
/// Set a field value if the field exists and is accessible in the object
/// </summary>
/// <param name="fieldName">Name of the field </param>
/// <param name="fieldValue">Value to set the field to</param>
/// <param name="srcObject">the object to inspect</param>
/// <param name="bSetPrivate">flag to indicate if field to set is a private field</param>
/// <returns></returns>
public static object SetField(string fieldName, object fieldValue, object srcObject, bool bSetPrivate)
{
BindingFlags bindingflags = BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static;
if (bSetPrivate)
{
bindingflags = bindingflags | BindingFlags.NonPublic;
}
if (Exists(fieldName, srcObject, bSetPrivate))
{
FieldInfo fieldInfo = srcObject.GetType().GetField(fieldName, bindingflags);
if (fieldInfo != null)
{
// Convert if necessary
Object destValue = ConverterHelper.Convert(fieldValue, fieldInfo.FieldType);
// Set the value
srcObject.GetType().InvokeMember(fieldInfo.Name,
BindingFlags.SetField | bindingflags,
null,
srcObject,
new object[] { destValue });
}
}
return(srcObject);
}
/// <summary>
/// Copy property values from the origin value object (VO) to the destination VO.
/// </summary>
/// <param name="propertyName">Name of the property to copy from</param>
/// <param name="srcObj">source object to copy from</param>
/// <param name="destObj">destination object to copy to</param>
/// <returns>returned value object copied</returns>
/// <exception cref="System.ArgumentNullException">thrown if either the source
/// or the destination objects are not supplied.</exception>
/// <exception cref="System.ArgumentException">thrown if the property
/// to be copied does not exists in the source
/// </exception>
public static object CopyProperty(string propertyName, object srcObj, object destObj)
{
if (srcObj == null)
{
throw new System.ArgumentNullException("srcObj");
}
if (destObj == null)
{
throw new System.ArgumentNullException("destObj");
}
if ((propertyName == null) || (propertyName.Length < 1))
{
throw new System.ArgumentNullException("propertyName is null or empty");
}
PropertyInfo propInfoSrcObj = srcObj.GetType().GetProperty(propertyName);
if (propInfoSrcObj == null)
{
throw new System.ArgumentException("The class '" + srcObj.GetType().Name + "' does not have the property '" + propertyName + "'");
}
PropertyInfo propInfoDestObj = destObj.GetType().GetProperty(propertyName);
if (propInfoDestObj == null || !propInfoDestObj.CanWrite)
{
throw new System.ArgumentException("The class '" + destObj.GetType().Name + "' does not have the property '" + propertyName + "' or the property cannot be set.");
}
// Get the value from property.
object srcValue = srcObj.GetType()
.InvokeMember(propInfoSrcObj.Name,
BindingFlags.GetProperty,
null,
srcObj,
null);
// Convert if necessary
Object destValue = ConverterHelper.Convert(srcValue, propInfoDestObj.PropertyType);
// Set the value
destObj.GetType().InvokeMember(propInfoDestObj.Name,
BindingFlags.SetProperty,
null,
destObj,
new object[] { destValue });
return(destObj);
}
/// <summary>
/// Set the specified property value of an object
/// </summary>
/// <param name="vo">the Value Object on which setting is to be performed</param>
/// <param name="propertyName">Property name</param>
/// <param name="propertyValue">Value to be set</param>
public static Object SetProperty(object vo, string propertyName, Object propertyValue)
{
if (vo == null)
{
throw new System.ArgumentException("No object specified to set.");
}
if ((propertyName == null) || (propertyName.Length < 1))
{
throw new System.ArgumentException("No property specified to set.");
}
PropertyInfo propInfo = vo.GetType().GetProperty(propertyName);
if (propInfo == null)
{
throw new System.ArgumentException("The class '" + vo.GetType().Name + "' does not have the property '" + propertyName + "'");
}
Object destValue;
if (propInfo.PropertyType.IsEnum)
{
vo = PropertyHelper.SetEnumTypeProperty(vo, propInfo.Name, propertyValue.ToString(), true);
}
else
{
// Convert if necessary
destValue = ConverterHelper.Convert(propertyValue, propInfo.PropertyType);
// Set the value
vo.GetType().InvokeMember(propInfo.Name,
BindingFlags.SetProperty,
null,
vo,
new object[] { destValue });
}
return(vo);
}
/// <summary>
/// Copy property values from the origin value object (VO) to the destination VO
/// for all cases where the property names are the same. For each
/// property, a conversion is attempted as necessary.
///
/// All combinations of standard value objects (.Net Property) and
/// javabean like value objects (property getters and setters) are supported.
///
/// Properties that exist in the origin VO, but do not exist
/// in the destination VO (or are read-only in the destination bean) are
/// silently ignored.
/// </summary>
/// <remarks>
/// Note that the JavaBean VO standards mandates that the getters MUST have
/// the method names beginning with a lowercase 'get' and the setters names MUST
/// begin with a lowercase 'set'. Eg. getAddress() and setAddress() are
/// valid getter and setter names for the Address property.
/// </remarks>
/// <param name="srcObject">Value object to be copied from</param>
/// <param name="destObject">Value object to be copied to</param>
/// <returns>returned value object copied from original to destination</returns>
public static object CopyProperties(object srcObject, object destObject)
{
// null objects cannot be reflected
if (srcObject == null)
{
return(destObject);
}
// --------------------------------
// copy public properties
// --------------------------------
foreach (PropertyInfo propInfoFromObj in srcObject.GetType().GetProperties())
{
PropertyInfo propInfoDestObj = destObject.GetType().GetProperty(propInfoFromObj.Name);
// Ensure that the property exists in the destination object
// and that it can be written, ie. it has the setter.
if (propInfoDestObj == null || !propInfoDestObj.CanWrite)
{
continue;
}
object srcValue = srcObject.GetType().InvokeMember(propInfoFromObj.Name,
BindingFlags.GetProperty,
null,
srcObject,
null);
// Convert if necessary
Object destValue = ConverterHelper.Convert(srcValue, propInfoDestObj.PropertyType);
destObject.GetType().InvokeMember(propInfoDestObj.Name,
BindingFlags.SetProperty,
null,
destObject,
new object[] { destValue });
}
// --------------------------------
// copy public fields
// --------------------------------
foreach (FieldInfo fieldInfoFromObj in srcObject.GetType().GetFields())
{
FieldInfo fieldInfoDestObj = destObject.GetType().GetField(fieldInfoFromObj.Name);
// Ensure field exists in the destination object
if (fieldInfoDestObj == null)
{
continue;
}
Object srcValue = srcObject.GetType().InvokeMember(fieldInfoFromObj.Name,
BindingFlags.GetField,
null,
srcObject,
null);
// Convert if necessary
Object destValue = ConverterHelper.Convert(srcValue, fieldInfoDestObj.FieldType);
destObject.GetType().InvokeMember(fieldInfoDestObj.Name,
BindingFlags.SetField,
null,
destObject,
new object[] { destValue });
}
// ------------------------------------------
// copy getter and setter type properties
// ------------------------------------------
foreach (MethodInfo fromObjMethodInfo in srcObject.GetType().GetMethods())
{
if (fromObjMethodInfo.Name.StartsWith("get") && !fromObjMethodInfo.Name.StartsWith("get_"))
{
string setterMethodName = "set" + fromObjMethodInfo.Name.Substring(3, fromObjMethodInfo.Name.Length - 3);
MethodInfo methodInfoDestobj = destObject.GetType().GetMethod(setterMethodName);
if (methodInfoDestobj != null)
{
try
{
object srcValue = srcObject
.GetType()
.InvokeMember(fromObjMethodInfo.Name,
BindingFlags.InvokeMethod,
null,
srcObject,
null);
destObject
.GetType()
.InvokeMember(methodInfoDestobj.Name,
BindingFlags.InvokeMethod,
null,
destObject,
new object[] { srcValue });
}
catch
{
//ignore and continue
}
}
}
}
// return the updated object
return(destObject);
}
/// <summary>
/// 1 level Deep copying of an <see cref="System.Object"/> properties and
/// fields to another.
/// Both private and public fields will be copied.
/// </summary>
/// <param name="srcObject">Source <see cref="System.Object"/> to copy from</param>
/// <param name="destObject">Destination <see cref="System.Object"/> to copy to</param>
/// <returns>Copied destination object</returns>
public static object Copy(object srcObject, object destObject)
{
// null objects cannot be reflected
if (srcObject == null)
{
return(destObject);
}
// --------------------------------
// copy public properties
// --------------------------------
foreach (PropertyInfo propInfoFromObj in srcObject.GetType().GetProperties(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public))
{
PropertyInfo propInfoDestObj = destObject.GetType().GetProperty(propInfoFromObj.Name, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
if (propInfoDestObj != null)
{
object srcValue = srcObject.GetType().InvokeMember(propInfoFromObj.Name,
BindingFlags.GetProperty | BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
null,
srcObject,
null);
// Convert if necessary
Object destValue = ConverterHelper.Convert(srcValue, propInfoDestObj.PropertyType);
destObject.GetType().InvokeMember(propInfoDestObj.Name,
BindingFlags.SetProperty | BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
null,
destObject,
new object[] { destValue });
}
}
// --------------------------------
// copy private & public fields
// --------------------------------
foreach (FieldInfo fieldInfoFromObj in srcObject.GetType().GetFields(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public))
{
FieldInfo fieldInfoDestObj = destObject.GetType().GetField(fieldInfoFromObj.Name, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
if (fieldInfoDestObj != null)
{
Object srcValue = srcObject.GetType().InvokeMember(fieldInfoFromObj.Name,
BindingFlags.GetField | BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
null,
srcObject,
null);
// Convert if necessary
Object destValue = ConverterHelper.Convert(srcValue, fieldInfoDestObj.FieldType);
destObject.GetType().InvokeMember(fieldInfoDestObj.Name,
BindingFlags.SetField | BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
null,
destObject,
new object[] { destValue });
}
}
return(destObject);
}
