本文整理汇总了C#中System.Reflection.PropertyInfo.GetFirstCustomAttribute方法的典型用法代码示例。如果您正苦于以下问题：C# PropertyInfo.GetFirstCustomAttribute方法的具体用法？C# PropertyInfo.GetFirstCustomAttribute怎么用？C# PropertyInfo.GetFirstCustomAttribute使用的例子？那么, 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.Reflection.PropertyInfo的用法示例。
在下文中一共展示了PropertyInfo.GetFirstCustomAttribute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: PropertyDescriptor
public PropertyDescriptor(TypeDescriptor declaringTypeDescriptor, Type ownerType, PropertyInfo propertyInfo)
{
this.OwnerType = ownerType;
this.PropertyInfo = propertyInfo;
this.DeclaringTypeDescriptor = declaringTypeDescriptor;
this.ValueRequiredAttribute = propertyInfo.GetFirstCustomAttribute<ValueRequiredAttribute>(true);
this.DefaultValueAttribute = propertyInfo.GetFirstCustomAttribute<DefaultValueAttribute>(true);
this.BackReferenceAttribute = propertyInfo.GetFirstCustomAttribute<BackReferenceAttribute>(true);
this.RelatedDataAccessObjectsAttribute = propertyInfo.GetFirstCustomAttribute<RelatedDataAccessObjectsAttribute>(true);
this.PersistedMemberAttribute = propertyInfo.GetFirstCustomAttribute<PersistedMemberAttribute>(true);
this.ComputedMemberAttribute = propertyInfo.GetFirstCustomAttribute<ComputedMemberAttribute>(true);
this.ComputedTextMemberAttribute = propertyInfo.GetFirstCustomAttribute<ComputedTextMemberAttribute>(true);
this.ForeignObjectConstraintAttribute = propertyInfo.GetFirstCustomAttribute<ForeignObjectConstraintAttribute>(true);
if (PersistedMemberAttribute == null)
{
this.PersistedMemberAttribute = (PersistedMemberAttribute)this.ComputedMemberAttribute ?? this.ComputedTextMemberAttribute;
}
if (this.PropertyType.IsIntegerType(true) || this.PropertyType.GetUnwrappedNullableType() == typeof(Guid))
{
this.AutoIncrementAttribute = propertyInfo.GetFirstCustomAttribute<AutoIncrementAttribute>(true);
}
this.PrimaryKeyAttribute = this.PropertyInfo.GetFirstCustomAttribute<PrimaryKeyAttribute>(true);
this.IsPrimaryKey = this.PrimaryKeyAttribute != null && this.PrimaryKeyAttribute.IsPrimaryKey;
this.IndexAttributes = this.PropertyInfo.GetCustomAttributes(typeof(IndexAttribute), true).OfType<IndexAttribute>().ToReadOnlyCollection();
this.UniqueAttribute = this.PropertyInfo.GetFirstCustomAttribute<UniqueAttribute>(true);
var named = this.PersistedMemberAttribute ?? this.BackReferenceAttribute ?? (NamedMemberAttribute)this.RelatedDataAccessObjectsAttribute;
if (named != null)
{
this.PersistedName = named.GetName(this, this.DeclaringTypeDescriptor.TypeDescriptorProvider.Configuration.NamingTransforms?.PersistedMemberName);
this.PrefixName = named.GetPrefixName(this, this.DeclaringTypeDescriptor.TypeDescriptorProvider.Configuration.NamingTransforms?.PersistedMemberPrefixName);
this.SuffixName = named.GetSuffixName(this, this.DeclaringTypeDescriptor.TypeDescriptorProvider.Configuration.NamingTransforms?.PersistedMemberSuffixName);
}
var expression = this.ComputedMemberAttribute?.GetSetLambdaExpression(this.DeclaringTypeDescriptor.TypeDescriptorProvider.Configuration, this)?.Body.StripConvert();
if (expression?.NodeType == ExpressionType.Assign)
{
var assignmentExpression = expression as BinaryExpression;
if (assignmentExpression.Left.NodeType == ExpressionType.MemberAccess)
{
var memberAccess = assignmentExpression.Left as MemberExpression;
this.ComputedMemberAssignTarget = memberAccess.Member as PropertyInfo;
this.ComputedMemberAssignmentValue = assignmentExpression.Right;
}
}
}示例2: PropertyDescriptor
public PropertyDescriptor(TypeDescriptor declaringTypeDescriptor, Type ownerType, PropertyInfo propertyInfo)
{
this.OwnerType = ownerType;
this.PropertyInfo = propertyInfo;
this.DeclaringTypeDescriptor = declaringTypeDescriptor;
this.ValueRequiredAttribute = propertyInfo.GetFirstCustomAttribute<ValueRequiredAttribute>(true);
this.DefaultValueAttribute = propertyInfo.GetFirstCustomAttribute<DefaultValueAttribute>(true);
this.BackReferenceAttribute = propertyInfo.GetFirstCustomAttribute<BackReferenceAttribute>(true);
this.RelatedDataAccessObjectsAttribute = propertyInfo.GetFirstCustomAttribute<RelatedDataAccessObjectsAttribute>(true);
this.PersistedMemberAttribute = propertyInfo.GetFirstCustomAttribute<PersistedMemberAttribute>(true);
this.ComputedMemberAttribute = propertyInfo.GetFirstCustomAttribute<ComputedMemberAttribute>(true);
this.ComputedTextMemberAttribute = propertyInfo.GetFirstCustomAttribute<ComputedTextMemberAttribute>(true);
this.ForeignObjectConstraintAttribute = propertyInfo.GetFirstCustomAttribute<ForeignObjectConstraintAttribute>(true);
if (this.PropertyType.IsIntegerType(true) || this.PropertyType.GetUnwrappedNullableType() == typeof(Guid))
{
this.AutoIncrementAttribute = propertyInfo.GetFirstCustomAttribute<AutoIncrementAttribute>(true);
}
this.PrimaryKeyAttribute = this.PropertyInfo.GetFirstCustomAttribute<PrimaryKeyAttribute>(true);
this.IsPrimaryKey = this.PrimaryKeyAttribute != null && this.PrimaryKeyAttribute.IsPrimaryKey;
if (this.PersistedMemberAttribute != null)
{
this.PersistedName = this.PersistedMemberAttribute.GetName(this.PropertyInfo, declaringTypeDescriptor);
this.PersistedShortName = this.PersistedMemberAttribute.GetShortName(this.PropertyInfo, this.DeclaringTypeDescriptor);
}
else if (this.BackReferenceAttribute != null)
{
this.PersistedName = this.BackReferenceAttribute.GetName(this.PropertyInfo, declaringTypeDescriptor);
this.PersistedShortName = this.PersistedName;
}
else if (this.RelatedDataAccessObjectsAttribute != null)
{
this.PersistedName = propertyInfo.Name;
this.PersistedShortName = propertyInfo.Name;
}
this.IndexAttributes = new ReadOnlyList<IndexAttribute>(this.PropertyInfo.GetCustomAttributes(typeof(IndexAttribute), true).OfType<IndexAttribute>().ToList());
this.UniqueAttribute = this.PropertyInfo.GetFirstCustomAttribute<UniqueAttribute>(true);
}示例3: IsPropertyPrimaryKey
public static bool IsPropertyPrimaryKey(PropertyInfo propertyInfo)
{
var value = propertyInfo.GetFirstCustomAttribute<PrimaryKeyAttribute>(true);
return value != null && value.IsPrimaryKey;
}