TargetException: non-static method requires a target 异常通常发生在尝试调用一个非静态方法时,但没有提供该方法所属的对象实例。在C#和.NET环境中,非静态方法需要绑定到一个具体的对象实例上才能被调用,因为它们依赖于对象的状态。如果这个对象实例为null,那么在尝试调用该方法时就会抛出此异常。 常见原因 对象实例...
C#Non-static method requires a target异常 非静态方法需要一个目标,一般这种情况是调用的某个方法时传参为null,这种情况编译时不会报错,运行时会出错 解决方法就是检查代码中涉及的实体是否为空,就比如我这里,GetChildren的list就是空的,导致在对他使用FindAll方法时时就报错了...
Access Session from static method/static class? Access sessions value from another project within the same solution. Access to the path 'c:\inetpub\wwwroot\images\a.jpg' is denied. Need Help Access to the path 'c:\inetpub\wwwroot\images\temp' is denied. I've granted "Full Control" permiss...
TargetException: Non-static method requires a target System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <00000000000000000000000000000000>:0) IFix.Core.Refl...
System.Reflection.TargetException: Non-static method requires a target. at System.Reflection.RuntimeConstructorInfo.InternalInvoke(Object obj, Object[] parameters, Boolean wrapExceptions) at System.RuntimeType.CreateInstanceMono(Boolean nonPublic, Boolean wrapExceptions) ...
System.Reflection.TargetException: Non-static method requires a target. at System.Reflection.RuntimeMethodInfo.CheckConsistency(Object target) at System.Reflection.RuntimeMethodInfo.InvokeArgumentsCheck(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, ...
"No connection could be made because the target machine actively refused it" when calling service in MVC app "Object reference not set to an instance of an object." ??? "PostAsJsonAsync" is not invoking web api POST action method "System.Data.Entity.Internal.AppConfig" type initializer causes...
public OrderQueryConditionField OrderQueryConditionField { get; set; } #endregion #region 导航属性 [JsonIgnore] [SugarColumn(IsIgnore = true)] public List<CustomerRole> CustomerRoles { get; set; } [SugarColumn(IsIgnore = true)] public int[] RoleIds => CustomerRoles?.GroupBy(g => g.Role...
If a field is not serialized, but it still requires a default value that must be supplied after deserialization, you can create a method that supplies the field with a value, then apply theOnDeserializedAttributeto the method. For more information about using attributes, seeAttributes. ...
Although the excitonic feature can be captured by long-range-corrected (LRC) kernels (see also section “Bootstrapping many-body perturbation theory”), the opening of the gap requires a frequency-dependent kernel79,212 and is related to the derivative discontinuity. Often this is effectively ...