public void Test_SetValue_With_String_PropertyName()
{
var test = new TestClass();
ObjectSetValue.SetValue(test, "IntProperty", 184);
Assert.AreEqual(184, test.IntProperty);
}
public void Test_SetValue_With_String_FieldName()
{
var test = new TestClass();
ObjectSetValue.SetValue(test, "IntField", 100);
Assert.AreEqual(100, test.IntField);
}
public void Test_SetValue_With_FieldInfo()
{
var test = new TestClass();
var field = test.GetType().GetField("IntField");
ObjectSetValue.SetValue(test, field, 23);
Assert.AreEqual(23, test.IntField);
}
public void Test_SetValue_With_PropertyInfo()
{
var test = new TestClass();
var prop = test.GetType().GetProperty("IntProperty");
ObjectSetValue.SetValue(test, prop, 83);
Assert.AreEqual(83, test.IntProperty);
}
/// <summary>
/// 把一列转换为对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="dr"></param>
/// <param name="columns"></param>
/// <returns></returns>
private static T DataRowToObject <T>(DataRow dr, DataColumnCollection columns) where T : new()
{
T t = new T();
//将反射放在这个位置，防止重复反射
Type objType = typeof(T);
var itemArray = objType.GetProperties();
foreach (DataColumn c in columns)
{
var item = itemArray.Where(a => string.Compare(a.Name, c.ColumnName, true) == 0).FirstOrDefault();
if (item == null)
{
continue;
}
try
{
if (item.PropertyType.IsGenericType && item.PropertyType.GetGenericTypeDefinition().Equals(typeof(Nullable <>)))
{
NullableConverter nullableConverter = new NullableConverter(item.PropertyType);
var convertType = nullableConverter.UnderlyingType;
var obj = Convert.ChangeType(dr[c.ColumnName], convertType);
ObjectSetValue.SetValue <T>(c.ColumnName, t, obj, item);
}
else
{
//防止多次的装箱拆箱操作
var obj = Convert.ChangeType(dr[c.ColumnName], item.PropertyType);
ObjectSetValue.SetValue <T>(c.ColumnName, t, obj, item);
}
}
catch
{
//写日记
}
}
return(t);
}
public void Test_Null_PropertyOrField_Throws()
{
var test = new TestClass();
ObjectSetValue.SetValue(test, "", 0);
}
