本文整理汇总了C#中System.Linq.Expressions.Expression.CastTo方法的典型用法代码示例。如果您正苦于以下问题：C# Expression.CastTo方法的具体用法？C# Expression.CastTo怎么用？C# Expression.CastTo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.CastTo方法的3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: GetPropertyInfo
/// <summary>
/// Returns a PropertyInfo based on a link expression, it will pull the first property name from the linq express.
/// </summary>
/// <param name="type"></param>
/// <param name="expression"></param>
/// <returns></returns>
public static PropertyInfo GetPropertyInfo(Type type, Expression expression)
{
string name = "";
if (expression.NodeType == ExpressionType.Convert)
{
Expression operand=(expression as UnaryExpression).Operand;
name = operand.CastTo<MemberExpression>().Member.Name;
}
else if (expression.NodeType == ExpressionType.Call)
{
name = expression.CastTo<MethodCallExpression>().Method.Name;
}
else if (expression.NodeType == ExpressionType.MemberAccess)
{
name = expression.CastTo<MemberExpression>().Member.Name;
}
PropertyInfo info = type.GetProperty(name);
//if we don't find the property straight away then it is probably an interface
//and we need to check all inherited interfaces.
if (info == null)
{
info = GetAllProperties(type).FirstOrDefault(x => x.Name == name);
}
return info;
}示例2: GetPropertyInfo
/// <summary>
/// Returns a PropertyInfo based on a link expression, it will pull the first property name from the linq express.
/// </summary>
/// <param name="type"></param>
/// <param name="expression"></param>
/// <returns></returns>
public static PropertyInfo GetPropertyInfo(Type type, Expression expression)
{
string name = "";
if (expression.NodeType == ExpressionType.Convert)
{
Expression operand=(expression as UnaryExpression).Operand;
name = operand.CastTo<MemberExpression>().Member.Name;
}
else if (expression.NodeType == ExpressionType.Call)
{
name = expression.CastTo<MethodCallExpression>().Method.Name;
}
else if (expression.NodeType == ExpressionType.MemberAccess)
{
name = expression.CastTo<MemberExpression>().Member.Name;
}
PropertyInfo info = type.GetProperty(name);
return info;
}示例3: GetPropertyName
public static string GetPropertyName(Expression expression)
{
string name = string.Empty;
switch (expression.NodeType)
{
case ExpressionType.Convert:
Expression operand = (expression as UnaryExpression).Operand;
name = operand.CastTo<MemberExpression>().Member.Name;
break;
case ExpressionType.Call:
name = expression.CastTo<MethodCallExpression>().Method.Name;
break;
case ExpressionType.MemberAccess:
name = expression.CastTo<MemberExpression>().Member.Name;
break;
case ExpressionType.TypeAs:
var unaryExp = expression.CastTo<UnaryExpression>();
name = GetPropertyName(unaryExp.Operand);
break;
}
return name;
}