本文整理汇总了C#中System.Linq.Expressions.Expression.MemberInit方法的典型用法代码示例。如果您正苦于以下问题：C# Expression.MemberInit方法的具体用法？C# Expression.MemberInit怎么用？C# Expression.MemberInit使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Linq.Expressions.Expression的用法示例。
在下文中一共展示了Expression.MemberInit方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: MemberInit
// Add the following directive to your file:
// using System.Linq.Expressions;
class TestMemberInitClass
{
public int sample { get; set; }
}
static void MemberInit()
{
// This expression creates a new TestMemberInitClass object
// and assigns 10 to its sample property.
Expression testExpr = Expression.MemberInit(
Expression.New(typeof(TestMemberInitClass)),
new List<MemberBinding>() {
Expression.Bind(typeof(TestMemberInitClass).GetMember("sample")[0], Expression.Constant(10))
}
);
// The following statement first creates an expression tree,
// then compiles it, and then runs it.
var test = Expression.Lambda<Func<TestMemberInitClass>>(testExpr).Compile()();
Console.WriteLine(test.sample);
}输出：
10
示例2: CreateMemberInitExpression
class Animal
{
public string Species {get; set;}
public int Age {get; set;}
}
public static void CreateMemberInitExpression()
{
System.Linq.Expressions.NewExpression newAnimal =
System.Linq.Expressions.Expression.New(typeof(Animal));
System.Reflection.MemberInfo speciesMember =
typeof(Animal).GetMember("Species")[0];
System.Reflection.MemberInfo ageMember =
typeof(Animal).GetMember("Age")[0];
// Create a MemberBinding object for each member
// that you want to initialize.
System.Linq.Expressions.MemberBinding speciesMemberBinding =
System.Linq.Expressions.Expression.Bind(
speciesMember,
System.Linq.Expressions.Expression.Constant("horse"));
System.Linq.Expressions.MemberBinding ageMemberBinding =
System.Linq.Expressions.Expression.Bind(
ageMember,
System.Linq.Expressions.Expression.Constant(12));
// Create a MemberInitExpression that represents initializing
// two members of the 'Animal' class.
System.Linq.Expressions.MemberInitExpression memberInitExpression =
System.Linq.Expressions.Expression.MemberInit(
newAnimal,
speciesMemberBinding,
ageMemberBinding);
Console.WriteLine(memberInitExpression.ToString());
// This code produces the following output:
//
// new Animal() {Species = "horse", Age = 12}
}