/// <summary>
/// 增加 RequiredAttribute 扩展方法
/// </summary>
/// <param name="context"></param>
/// <param name="columnName"></param>
/// <param name="errorMessage"></param>
/// <param name="allowEmptyStrings"></param>
public static void AddRequiredAttribute(this DynamicObjectContext context, string columnName, string?errorMessage = null, bool allowEmptyStrings = false)
{
var parameters = new KeyValuePair <string, object?>[]
{
new(nameof(RequiredAttribute.ErrorMessage), errorMessage),
new(nameof(RequiredAttribute.AllowEmptyStrings), allowEmptyStrings)
};
context.AddMultipleParameterAttribute <RequiredAttribute>(columnName, parameters);
}
/// <summary>
/// 增加多参数自定义标签泛型方法
/// </summary>
/// <typeparam name="TAttribute"></typeparam>
/// <param name="context"></param>
/// <param name="columnName"></param>
/// <param name="parameters"></param>
public static void AddMultipleParameterAttribute <TAttribute>(this DynamicObjectContext context, string columnName, IEnumerable <KeyValuePair <string, object?> > parameters) where TAttribute : Attribute
{
var type = typeof(TAttribute);
var propertyInfos = new List <PropertyInfo>();
var propertyValues = new List <object?>();
foreach (var kv in parameters)
{
var pInfo = type.GetProperty(kv.Key);
if (pInfo != null)
{
propertyInfos.Add(pInfo);
propertyValues.Add(kv.Value);
}
}
context.AddAttribute(columnName, type, Type.EmptyTypes, Array.Empty <object>(), propertyInfos.ToArray(), propertyValues.ToArray());
}
/// <summary>
/// 增加自定义标签泛型方法
/// </summary>
/// <typeparam name="TAttribute"></typeparam>
/// <param name="context"></param>
/// <param name="columnName"></param>
/// <param name="types"></param>
/// <param name="constructorArgs"></param>
/// <param name="propertyInfos"></param>
/// <param name="propertyValues"></param>
public static void AddAttribute <TAttribute>(this DynamicObjectContext context, string columnName, Type[] types, object?[] constructorArgs, PropertyInfo[]?propertyInfos = null, object?[]?propertyValues = null) where TAttribute : Attribute
{
var type = typeof(TAttribute);
context.AddAttribute(columnName, type, types, constructorArgs, propertyInfos, propertyValues);
}
/// <summary>
/// 增加 DescriptionAttribute 扩展方法
/// </summary>
/// <param name="context"></param>
/// <param name="columnName"></param>
/// <param name="description"></param>
public static void AddDescriptionAttribute(this DynamicObjectContext context, string columnName, string description) => context.AddAttribute <DescriptionAttribute>(columnName, new Type[] { typeof(string) }, new object?[] { description });
/// <summary>
/// 增加 DisplayNameAttribute 扩展方法
/// </summary>
/// <param name="context"></param>
/// <param name="columnName"></param>
/// <param name="displayName"></param>
public static void AddDisplayNameAttribute(this DynamicObjectContext context, string columnName, string displayName) => context.AddAttribute <DisplayNameAttribute>(columnName, new Type[] { typeof(string) }, new object?[] { displayName });
/// <summary> /// 增加 DisplayAttribute 扩展方法 /// </summary> /// <param name="context"></param> /// <param name="columnName"></param> /// <param name="parameters"></param> public static void AddDisplayAttribute(this DynamicObjectContext context, string columnName, IEnumerable <KeyValuePair <string, object?> > parameters) => context.AddMultipleParameterAttribute <DisplayAttribute>(columnName, parameters);