C# (CSharp) LambdaExpression.Combine示例

示例#1

 public static LambdaExpression AndAlsoOrDefault(this LambdaExpression left, LambdaExpression right)
 {
     if (left == null)
     {
         return(right);
     }
     if (right == null)
     {
         return(left);
     }
     return(left.Combine(right, Expression.AndAlso));
 }

示例#2

 public static LambdaExpression OrElse(this LambdaExpression left, LambdaExpression right)
 {
     return(left.Combine(right, Expression.OrElse));
 }

示例#3

 public static LambdaExpression AndAlso(this LambdaExpression left, LambdaExpression right)
 {
     return(left.Combine(right, Expression.AndAlso));
 }