public static object InitializeObject(object objObject, Type objType)
{
int intProperty = 0;
// get properties for type
ArrayList objProperties = GetPropertyInfo(objType);
// initialize properties
for (intProperty = 0; intProperty <= objProperties.Count - 1; intProperty++)
{
if (((PropertyInfo)objProperties[intProperty]).CanWrite)
{
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, Null.SetNull((PropertyInfo)objProperties[intProperty]), null);
}
}
return(objObject);
}
private static object CreateObject(Type objType, IDataReader dr, ArrayList objProperties, int[] arrOrdinals)
{
object objObject = Activator.CreateInstance(objType);
int intProperty = 0;
// fill object with values from datareader
for (intProperty = 0; intProperty <= objProperties.Count - 1; intProperty++)
{
if (((PropertyInfo)objProperties[intProperty]).CanWrite)
{
if (arrOrdinals[intProperty] != -1)
{
if (dr.GetValue(arrOrdinals[intProperty]) == System.DBNull.Value)
{
// translate Null value
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, Null.SetNull((PropertyInfo)objProperties[intProperty]), null);
}
else
{
try
{
Type pType = ((PropertyInfo)objProperties[intProperty]).PropertyType;
switch (pType.FullName)
{
case "System.Enum":
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, System.Enum.ToObject(pType, dr.GetValue(arrOrdinals[intProperty])), null);
break;
case "System.String":
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, dr.GetString(arrOrdinals[intProperty]), null);
break;
case "System.Boolean":
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, dr.GetBoolean(arrOrdinals[intProperty]), null);
break;
case "System.Decimal":
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, dr.GetDecimal(arrOrdinals[intProperty]), null);
break;
case "System.Int16":
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, dr.GetInt16(arrOrdinals[intProperty]), null);
break;
case "System.Int32":
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, dr.GetInt32(arrOrdinals[intProperty]), null);
break;
case "System.Int64":
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, dr.GetInt64(arrOrdinals[intProperty]), null);
break;
case "System.DateTime":
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, dr.GetDateTime(arrOrdinals[intProperty]), null);
break;
case "System.Double":
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, dr.GetDouble(arrOrdinals[intProperty]), null);
break;
default:
// try explicit conversion
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, Convert.ChangeType(dr.GetValue(arrOrdinals[intProperty]), pType), null);
break;
}
}
catch
{
}
}
}
else
{
// property does not exist in datareader
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, Null.SetNull((PropertyInfo)objProperties[intProperty]), null);
}
}
}
return(objObject);
}
private static object CreateObject(Type objType, DataRow dr, ArrayList objProperties)
{
object objObject = Activator.CreateInstance(objType);
int intProperty = 0;
bool hasDatarowColum = false;
// fill object with values from datareader
for (intProperty = 0; intProperty <= objProperties.Count - 1; intProperty++)
{
if (((PropertyInfo)objProperties[intProperty]).CanWrite)
{
//kiem tra xem trong datarow co thuoc tinh nay khong
hasDatarowColum = false;
try
{
object obj = dr[((PropertyInfo)objProperties[intProperty]).Name];
hasDatarowColum = true;
}
catch
{
hasDatarowColum = false;
}
//ket thuc: kiem tra xem trong datarow co thuoc tinh nay khong
if (hasDatarowColum == false)
{
// translate Null value
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, Null.SetNull((PropertyInfo)objProperties[intProperty]), null);
}
else
{
try
{
// try implicit conversion first
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, dr[((PropertyInfo)objProperties[intProperty]).Name], null);
}
catch
{
// data types do not match
try
{
Type pType = ((PropertyInfo)objProperties[intProperty]).PropertyType;
//need to handle enumeration conversions differently than other base types
if (pType.BaseType.Equals(typeof(System.Enum)))
{
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, System.Enum.ToObject(pType, dr[((PropertyInfo)objProperties[intProperty]).Name]), null);
}
else
{
// try explicit conversion
((PropertyInfo)objProperties[intProperty]).SetValue(objObject, Convert.ChangeType(dr[((PropertyInfo)objProperties[intProperty]).Name], pType), null);
}
}
catch
{
}
// error assigning a datareader value to a property
}
}
}
}
return(objObject);
}
private static object CreateObjectFromDataSet(Type objType, DataRow dr, Hashtable objProperties, Hashtable arrOrdinals)
{
object objObject = Activator.CreateInstance(objType);
// fill object with values from datareader
string _fieldname = "";
int _possition = -1;
foreach (DictionaryEntry de in arrOrdinals)
{
_fieldname = de.Key.ToString();
_possition = (int)de.Value;
if (((PropertyInfo)objProperties[_fieldname]).CanWrite)
{
if (dr[_fieldname] == System.DBNull.Value)
{
// translate Null value
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, Null.SetNull((PropertyInfo)objProperties[_fieldname]), null);
}
else
{
try
{
Type pType = ((PropertyInfo)objProperties[_fieldname]).PropertyType;
#region
switch (pType.FullName)
{
case "System.Enum":
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, System.Enum.ToObject(pType, dr[_possition]), null);
break;
case "System.String":
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, (string)dr[_possition], null);
break;
case "System.Boolean":
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, (Boolean)dr[_possition], null);
break;
case "System.Decimal":
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, Convert.ToDecimal(dr[_possition].ToString()), null);
break;
case "System.Int16":
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, Convert.ToInt16(dr[_possition].ToString()), null);
break;
case "System.Int32":
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, Convert.ToInt32(dr[_possition].ToString()), null);
break;
case "System.Int64":
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, Convert.ToInt64(dr[_possition].ToString()), null);
break;
case "System.DateTime":
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, (DateTime)dr[_possition], null);
break;
case "System.Double":
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, (Double)dr[_possition], null);
break;
default:
// try explicit conversion
((PropertyInfo)objProperties[_fieldname]).SetValue(objObject, Convert.ChangeType(dr[_possition], pType), null);
break;
}
#endregion
}
catch (Exception ex)
{
throw ex;
}
}
}
}
return(objObject);
}
