/// -----------------------------------------------------------------------------
/// <summary>
/// Generic version of CreateObject creates an object of a specified type from the
/// provided DataRow
/// </summary>
/// <typeparam name="T">The type of the business object</typeparam>
/// <param name="dr">The DataRow</param>
/// <returns>The custom business object</returns>
/// <remarks></remarks>
/// -----------------------------------------------------------------------------
private static T CreateObject <T>(DataRow dr)
{
PropertyInfo objPropertyInfo;
object objValue;
Type objPropertyType = null;
int intProperty;
T objObject = Activator.CreateInstance <T>();
ArrayList objProperties = GetPropertyInfo(objObject.GetType());
for (intProperty = 0; intProperty <= objProperties.Count - 1; intProperty++)
{
objPropertyInfo = (PropertyInfo)objProperties[intProperty]; if (objPropertyInfo.CanWrite)
{
objValue = Null.SetNull(objPropertyInfo);
try
{
if (System.Convert.IsDBNull(dr[objPropertyInfo.Name]))
{
objPropertyInfo.SetValue(objObject, objValue, null);
}
else
{
try
{
objPropertyInfo.SetValue(objObject, dr[objPropertyInfo.Name], null);
}
catch
{
try
{
objPropertyType = objPropertyInfo.PropertyType;
if (objPropertyType.BaseType.Equals(typeof(System.Enum)))
{
int testint = 0;
if (testint.GetType() == dr[objPropertyInfo.Name].GetType())
{
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, System.Enum.ToObject(objPropertyType, Convert.ToInt32(dr[objPropertyInfo.Name])), null);
}
else
{
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, System.Enum.ToObject(objPropertyType, dr[objPropertyInfo.Name]), null);
}
}
else
{
objPropertyInfo.SetValue(objObject, Convert.ChangeType(dr[objPropertyInfo.Name], objPropertyType), null);
}
}
catch
{
objPropertyInfo.SetValue(objObject, Convert.ChangeType(dr[objPropertyInfo.Name], objPropertyType), null);
}
}
}
}
catch
{
objPropertyInfo.SetValue(objObject, objValue, null);
}
}
}
return(objObject);
}
/// <summary>
/// Return object based on parameters.
/// </summary>
/// <param name="objType">Type od datatype.</param>
/// <param name="dr">The DataReader</param>
/// <param name="objProperties">ArrayList</param>
/// <param name="arrOrdinals">Array of integer.</param>
/// <returns>Object</returns>
private static object CreateObject(Type objType, IDataReader dr, ArrayList objProperties, int[] arrOrdinals)
{
PropertyInfo objPropertyInfo;
object objValue;
Type objPropertyType = null;
int intProperty;
//objPropertyInfo.ToString() == BuiltyNumber
object objObject = Activator.CreateInstance(objType);
// fill object with values from datareader
for (intProperty = 0; intProperty <= objProperties.Count - 1; intProperty++)
{
objPropertyInfo = (PropertyInfo)objProperties[intProperty];
if (objPropertyInfo.CanWrite)
{
objValue = Null.SetNull(objPropertyInfo);
if (arrOrdinals[intProperty] != -1)
{
if (System.Convert.IsDBNull(dr.GetValue(arrOrdinals[intProperty])))
{
// translate Null value
objPropertyInfo.SetValue(objObject, objValue, null);
}
else
{
try
{
// try implicit conversion first
objPropertyInfo.SetValue(objObject, dr.GetValue(arrOrdinals[intProperty]), null);
}
catch
{
// business object info class member data type does not match datareader member data type
try
{
objPropertyType = objPropertyInfo.PropertyType;
//need to handle enumeration conversions differently than other base types
if (objPropertyType.BaseType.Equals(typeof(System.Enum)))
{
// check if value is numeric and if not convert to integer ( supports databases like Oracle )
int test = 0;
if (test.GetType() == dr.GetValue(arrOrdinals[intProperty]).GetType())
{
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, System.Enum.ToObject(objPropertyType, Convert.ToInt32(dr.GetValue(arrOrdinals[intProperty]))), null);
}
else
{
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, System.Enum.ToObject(objPropertyType, dr.GetValue(arrOrdinals[intProperty])), null);
}
}
else if (objPropertyType.FullName.Equals("System.Guid"))
{
// guid is not a datatype common across all databases ( ie. Oracle )
objPropertyInfo.SetValue(objObject, Convert.ChangeType(new Guid(dr.GetValue(arrOrdinals[intProperty]).ToString()), objPropertyType), null);
}
else
{
// try explicit conversion
objPropertyInfo.SetValue(objObject, Convert.ChangeType(dr.GetValue(arrOrdinals[intProperty]), objPropertyType), null);
}
}
catch
{
objPropertyInfo.SetValue(objObject, Convert.ChangeType(dr.GetValue(arrOrdinals[intProperty]), objPropertyType), null);
}
}
}
}
else
{
// property does not exist in datareader
}
}
}
return(objObject);
}
/// -----------------------------------------------------------------------------
/// <summary>
/// Generic version of CreateObject creates an object of a specified type from the
/// provided DataReader
/// </summary>
/// <typeparam name="T">The type of the business object</typeparam>
/// <param name="dr">The DataReader</param>
/// <returns>The custom business object</returns>
/// <remarks></remarks>
/// <history>
/// [cnurse] 10/10/2005 Created
/// </history>
/// -----------------------------------------------------------------------------
private static T CreateObject <T>(IDataReader dr)
{
PropertyInfo objPropertyInfo;
object objValue;
Type objPropertyType = null;
int intProperty;
T objObject = Activator.CreateInstance <T>();
// get properties for type
ArrayList objProperties = GetPropertyInfo(objObject.GetType());
// get ordinal positions in datareader
int[] arrOrdinals = GetOrdinals(objProperties, dr);
// fill object with values from datareader
for (intProperty = 0; intProperty <= objProperties.Count - 1; intProperty++)
{
objPropertyInfo = (PropertyInfo)objProperties[intProperty];
if (objPropertyInfo.CanWrite)
{
objValue = Null.SetNull(objPropertyInfo);
if (arrOrdinals[intProperty] != -1)
{
if (System.Convert.IsDBNull(dr.GetValue(arrOrdinals[intProperty])))
{
// translate Null value
objPropertyInfo.SetValue(objObject, objValue, null);
}
else
{
try
{
// try implicit conversion first
objPropertyInfo.SetValue(objObject, dr.GetValue(arrOrdinals[intProperty]), null);
}
catch
{
// business object info class member data type does not match datareader member data type
try
{
objPropertyType = objPropertyInfo.PropertyType;
//need to handle enumeration conversions differently than other base types
if (objPropertyType.BaseType.Equals(typeof(System.Enum)))
{
// check if value is numeric and if not convert to integer ( supports databases like Oracle )
int testint = 0;
if (testint.GetType() == dr.GetValue(arrOrdinals[intProperty]).GetType())
{
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, System.Enum.ToObject(objPropertyType, Convert.ToInt32(dr.GetValue(arrOrdinals[intProperty]))), null);
}
else
{
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, System.Enum.ToObject(objPropertyType, dr.GetValue(arrOrdinals[intProperty])), null);
}
}
else
{
// try explicit conversion
objPropertyInfo.SetValue(objObject, Convert.ChangeType(dr.GetValue(arrOrdinals[intProperty]), objPropertyType), null);
}
}
catch
{
objPropertyInfo.SetValue(objObject, Convert.ChangeType(dr.GetValue(arrOrdinals[intProperty]), objPropertyType), null);
}
}
}
}
else
{
// property does not exist in datareader
}
}
}
return(objObject);
}
