# AttachmentCollection Class

**.NET Framework (current version)**

Stores attachments to be sent as part of an e-mail message.

**Namespace:**System.Net.Mail

**Assembly:**System (in System.dll)

Name | Description | |
---|---|---|

Count | Gets the number of elements actually contained in the Collection(Of T).(Inherited from Collection(Of T).) | |

Item(Int32) | Gets or sets the element at the specified index.(Inherited from Collection(Of T).) |

Name | Description | |
---|---|---|

Add(T) | Adds an object to the end of the Collection(Of T). (Inherited from Collection(Of T).) | |

Clear() | Removes all elements from the Collection(Of T).(Inherited from Collection(Of T).) | |

Contains(T) | Determines whether an element is in the Collection(Of T).(Inherited from Collection(Of T).) | |

CopyTo(T(), Int32) | Copies the entire Collection(Of T) to a compatible one-dimensional Array, starting at the specified index of the target array.(Inherited from Collection(Of T).) | |

Dispose() | Releases all resources used by the AttachmentCollection. | |

Equals(Object) | Determines whether the specified object is equal to the current object.(Inherited from Object.) | |

GetEnumerator() | Returns an enumerator that iterates through the Collection(Of T).(Inherited from Collection(Of T).) | |

GetHashCode() | Serves as the default hash function. (Inherited from Object.) | |

GetType() | ||

IndexOf(T) | Searches for the specified object and returns the zero-based index of the first occurrence within the entire Collection(Of T).(Inherited from Collection(Of T).) | |

Insert(Int32, T) | Inserts an element into the Collection(Of T) at the specified index.(Inherited from Collection(Of T).) | |

Remove(T) | Removes the first occurrence of a specific object from the Collection(Of T).(Inherited from Collection(Of T).) | |

RemoveAt(Int32) | Removes the element at the specified index of the Collection(Of T).(Inherited from Collection(Of T).) | |

ToString() | Returns a string that represents the current object.(Inherited from Object.) |

Name | Description | |
---|---|---|

ICollection.CopyTo(Array, Int32) | Copies the elements of the ICollection to an Array, starting at a particular Array index.(Inherited from Collection(Of T).) | |

IEnumerable.GetEnumerator() | Returns an enumerator that iterates through a collection.(Inherited from Collection(Of T).) | |

IList.Add(Object) | Adds an item to the IList.(Inherited from Collection(Of T).) | |

IList.Contains(Object) | Determines whether the IList contains a specific value.(Inherited from Collection(Of T).) | |

IList.IndexOf(Object) | Determines the index of a specific item in the IList.(Inherited from Collection(Of T).) | |

IList.Insert(Int32, Object) | Inserts an item into the IList at the specified index.(Inherited from Collection(Of T).) | |

IList.Remove(Object) | Removes the first occurrence of a specific object from the IList.(Inherited from Collection(Of T).) | |

ICollection(Of T).IsReadOnly | Gets a value indicating whether the ICollection(Of T) is read-only.(Inherited from Collection(Of T).) | |

ICollection.IsSynchronized | Gets a value indicating whether access to the ICollection is synchronized (thread safe).(Inherited from Collection(Of T).) | |

ICollection.SyncRoot | Gets an object that can be used to synchronize access to the ICollection.(Inherited from Collection(Of T).) | |

IList.IsFixedSize | Gets a value indicating whether the IList has a fixed size.(Inherited from Collection(Of T).) | |

IList.IsReadOnly | Gets a value indicating whether the IList is read-only.(Inherited from Collection(Of T).) | |

IList.Item(Int32) | Gets or sets the element at the specified index.(Inherited from Collection(Of T).) |

Name | Description | |
---|---|---|

Aggregate(Of Attachment)(Func(Of Attachment, Attachment, Attachment)) | Overloaded. Applies an accumulator function over a sequence.(Defined by Enumerable.) | |

Aggregate(Of Attachment, TAccumulate)(TAccumulate, Func(Of TAccumulate, Attachment, TAccumulate)) | Overloaded. Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.(Defined by Enumerable.) | |

Aggregate(Of Attachment, TAccumulate, TResult)(TAccumulate, Func(Of TAccumulate, Attachment, TAccumulate), Func(Of TAccumulate, TResult)) | Overloaded. Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.(Defined by Enumerable.) | |

All(Of Attachment)(Func(Of Attachment, Boolean)) | Determines whether all elements of a sequence satisfy a condition.(Defined by Enumerable.) | |

Any(Of Attachment)() | Overloaded. Determines whether a sequence contains any elements.(Defined by Enumerable.) | |

Any(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Determines whether any element of a sequence satisfies a condition.(Defined by Enumerable.) | |

AsEnumerable(Of Attachment)() | Returns the input typed as IEnumerable(Of T).(Defined by Enumerable.) | |

AsParallel() | Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.) | |

AsParallel(Of Attachment)() | Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.) | |

AsQueryable() | Overloaded. Converts an IEnumerable to an IQueryable.(Defined by Queryable.) | |

AsQueryable(Of Attachment)() | Overloaded. Converts a generic IEnumerable(Of T) to a generic IQueryable(Of T).(Defined by Queryable.) | |

Average(Of Attachment)(Func(Of Attachment, Decimal)) | Overloaded. Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Average(Of Attachment)(Func(Of Attachment, Double)) | Overloaded. Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Average(Of Attachment)(Func(Of Attachment, Int32)) | Overloaded. Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Average(Of Attachment)(Func(Of Attachment, Int64)) | Overloaded. Computes the average of a sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Average(Of Attachment)(Func(Of Attachment, Nullable(Of Decimal))) | Overloaded. Computes the average of a sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Average(Of Attachment)(Func(Of Attachment, Nullable(Of Double))) | Overloaded. Computes the average of a sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Average(Of Attachment)(Func(Of Attachment, Nullable(Of Int32))) | Overloaded. Computes the average of a sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Average(Of Attachment)(Func(Of Attachment, Nullable(Of Int64))) | Overloaded. Computes the average of a sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Average(Of Attachment)(Func(Of Attachment, Nullable(Of Single))) | Overloaded. Computes the average of a sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Average(Of Attachment)(Func(Of Attachment, Single)) | Overloaded. Computes the average of a sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Cast(Of TResult)() | Casts the elements of an IEnumerable to the specified type.(Defined by Enumerable.) | |

Concat(Of Attachment)(IEnumerable(Of Attachment)) | Concatenates two sequences.(Defined by Enumerable.) | |

Contains(Of Attachment)(Attachment) | Overloaded. Determines whether a sequence contains a specified element by using the default equality comparer.(Defined by Enumerable.) | |

Contains(Of Attachment)(Attachment, IEqualityComparer(Of Attachment)) | Overloaded. Determines whether a sequence contains a specified element by using a specified IEqualityComparer(Of T).(Defined by Enumerable.) | |

Count(Of Attachment)() | Overloaded. Returns the number of elements in a sequence.(Defined by Enumerable.) | |

Count(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Returns a number that represents how many elements in the specified sequence satisfy a condition.(Defined by Enumerable.) | |

DefaultIfEmpty(Of Attachment)() | Overloaded. Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.(Defined by Enumerable.) | |

DefaultIfEmpty(Of Attachment)(Attachment) | Overloaded. Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.(Defined by Enumerable.) | |

Distinct(Of Attachment)() | Overloaded. Returns distinct elements from a sequence by using the default equality comparer to compare values.(Defined by Enumerable.) | |

Distinct(Of Attachment)(IEqualityComparer(Of Attachment)) | Overloaded. Returns distinct elements from a sequence by using a specified IEqualityComparer(Of T) to compare values.(Defined by Enumerable.) | |

ElementAt(Of Attachment)(Int32) | Returns the element at a specified index in a sequence.(Defined by Enumerable.) | |

ElementAtOrDefault(Of Attachment)(Int32) | Returns the element at a specified index in a sequence or a default value if the index is out of range.(Defined by Enumerable.) | |

Except(Of Attachment)(IEnumerable(Of Attachment)) | Overloaded. Produces the set difference of two sequences by using the default equality comparer to compare values.(Defined by Enumerable.) | |

Except(Of Attachment)(IEnumerable(Of Attachment), IEqualityComparer(Of Attachment)) | Overloaded. Produces the set difference of two sequences by using the specified IEqualityComparer(Of T) to compare values.(Defined by Enumerable.) | |

First(Of Attachment)() | Overloaded. Returns the first element of a sequence.(Defined by Enumerable.) | |

First(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Returns the first element in a sequence that satisfies a specified condition.(Defined by Enumerable.) | |

FirstOrDefault(Of Attachment)() | Overloaded. Returns the first element of a sequence, or a default value if the sequence contains no elements.(Defined by Enumerable.) | |

FirstOrDefault(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Returns the first element of the sequence that satisfies a condition or a default value if no such element is found.(Defined by Enumerable.) | |

GroupBy(Of Attachment, TKey)(Func(Of Attachment, TKey)) | Overloaded. Groups the elements of a sequence according to a specified key selector function.(Defined by Enumerable.) | |

GroupBy(Of Attachment, TKey)(Func(Of Attachment, TKey), IEqualityComparer(Of TKey)) | Overloaded. Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.(Defined by Enumerable.) | |

GroupBy(Of Attachment, TKey, TElement)(Func(Of Attachment, TKey), Func(Of Attachment, TElement)) | Overloaded. Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.(Defined by Enumerable.) | |

GroupBy(Of Attachment, TKey, TElement)(Func(Of Attachment, TKey), Func(Of Attachment, TElement), IEqualityComparer(Of TKey)) | Overloaded. Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function.(Defined by Enumerable.) | |

GroupBy(Of Attachment, TKey, TResult)(Func(Of Attachment, TKey), Func(Of TKey, IEnumerable(Of Attachment), TResult)) | Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.(Defined by Enumerable.) | |

GroupBy(Of Attachment, TKey, TResult)(Func(Of Attachment, TKey), Func(Of TKey, IEnumerable(Of Attachment), TResult), IEqualityComparer(Of TKey)) | Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer.(Defined by Enumerable.) | |

GroupBy(Of Attachment, TKey, TElement, TResult)(Func(Of Attachment, TKey), Func(Of Attachment, TElement), Func(Of TKey, IEnumerable(Of TElement), TResult)) | Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.(Defined by Enumerable.) | |

GroupBy(Of Attachment, TKey, TElement, TResult)(Func(Of Attachment, TKey), Func(Of Attachment, TElement), Func(Of TKey, IEnumerable(Of TElement), TResult), IEqualityComparer(Of TKey)) | Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.(Defined by Enumerable.) | |

GroupJoin(Of Attachment, TInner, TKey, TResult)(IEnumerable(Of TInner), Func(Of Attachment, TKey), Func(Of TInner, TKey), Func(Of Attachment, IEnumerable(Of TInner), TResult)) | Overloaded. Correlates the elements of two sequences based on equality of keys and groups the results. The default equality comparer is used to compare keys.(Defined by Enumerable.) | |

GroupJoin(Of Attachment, TInner, TKey, TResult)(IEnumerable(Of TInner), Func(Of Attachment, TKey), Func(Of TInner, TKey), Func(Of Attachment, IEnumerable(Of TInner), TResult), IEqualityComparer(Of TKey)) | Overloaded. Correlates the elements of two sequences based on key equality and groups the results. A specified IEqualityComparer(Of T) is used to compare keys.(Defined by Enumerable.) | |

Intersect(Of Attachment)(IEnumerable(Of Attachment)) | Overloaded. Produces the set intersection of two sequences by using the default equality comparer to compare values.(Defined by Enumerable.) | |

Intersect(Of Attachment)(IEnumerable(Of Attachment), IEqualityComparer(Of Attachment)) | Overloaded. Produces the set intersection of two sequences by using the specified IEqualityComparer(Of T) to compare values.(Defined by Enumerable.) | |

Join(Of Attachment, TInner, TKey, TResult)(IEnumerable(Of TInner), Func(Of Attachment, TKey), Func(Of TInner, TKey), Func(Of Attachment, TInner, TResult)) | Overloaded. Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.(Defined by Enumerable.) | |

Join(Of Attachment, TInner, TKey, TResult)(IEnumerable(Of TInner), Func(Of Attachment, TKey), Func(Of TInner, TKey), Func(Of Attachment, TInner, TResult), IEqualityComparer(Of TKey)) | Overloaded. Correlates the elements of two sequences based on matching keys. A specified IEqualityComparer(Of T) is used to compare keys.(Defined by Enumerable.) | |

Last(Of Attachment)() | Overloaded. Returns the last element of a sequence.(Defined by Enumerable.) | |

Last(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Returns the last element of a sequence that satisfies a specified condition.(Defined by Enumerable.) | |

LastOrDefault(Of Attachment)() | Overloaded. Returns the last element of a sequence, or a default value if the sequence contains no elements.(Defined by Enumerable.) | |

LastOrDefault(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.(Defined by Enumerable.) | |

LongCount(Of Attachment)() | Overloaded. Returns an Int64 that represents the total number of elements in a sequence.(Defined by Enumerable.) | |

LongCount(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Returns an Int64 that represents how many elements in a sequence satisfy a condition.(Defined by Enumerable.) | |

Max(Of Attachment)() | Overloaded. Returns the maximum value in a generic sequence.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Decimal)) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Decimal value.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Double)) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Double value.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Int32)) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int32 value.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Int64)) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int64 value.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Nullable(Of Decimal))) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Nullable(Of Double))) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Double value.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Nullable(Of Int32))) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int32 value.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Nullable(Of Int64))) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int64 value.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Nullable(Of Single))) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.(Defined by Enumerable.) | |

Max(Of Attachment)(Func(Of Attachment, Single)) | Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Single value.(Defined by Enumerable.) | |

Max(Of Attachment, TResult)(Func(Of Attachment, TResult)) | Overloaded. Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.(Defined by Enumerable.) | |

Min(Of Attachment)() | Overloaded. Returns the minimum value in a generic sequence.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Decimal)) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Decimal value.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Double)) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Double value.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Int32)) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int32 value.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Int64)) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int64 value.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Nullable(Of Decimal))) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Nullable(Of Double))) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Double value.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Nullable(Of Int32))) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int32 value.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Nullable(Of Int64))) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int64 value.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Nullable(Of Single))) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.(Defined by Enumerable.) | |

Min(Of Attachment)(Func(Of Attachment, Single)) | Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Single value.(Defined by Enumerable.) | |

Min(Of Attachment, TResult)(Func(Of Attachment, TResult)) | Overloaded. Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.(Defined by Enumerable.) | |

OfType(Of TResult)() | Filters the elements of an IEnumerable based on a specified type.(Defined by Enumerable.) | |

OrderBy(Of Attachment, TKey)(Func(Of Attachment, TKey)) | Overloaded. Sorts the elements of a sequence in ascending order according to a key.(Defined by Enumerable.) | |

OrderBy(Of Attachment, TKey)(Func(Of Attachment, TKey), IComparer(Of TKey)) | Overloaded. Sorts the elements of a sequence in ascending order by using a specified comparer.(Defined by Enumerable.) | |

OrderByDescending(Of Attachment, TKey)(Func(Of Attachment, TKey)) | Overloaded. Sorts the elements of a sequence in descending order according to a key.(Defined by Enumerable.) | |

OrderByDescending(Of Attachment, TKey)(Func(Of Attachment, TKey), IComparer(Of TKey)) | Overloaded. Sorts the elements of a sequence in descending order by using a specified comparer.(Defined by Enumerable.) | |

Reverse(Of Attachment)() | Inverts the order of the elements in a sequence.(Defined by Enumerable.) | |

Select(Of Attachment, TResult)(Func(Of Attachment, TResult)) | Overloaded. Projects each element of a sequence into a new form.(Defined by Enumerable.) | |

Select(Of Attachment, TResult)(Func(Of Attachment, Int32, TResult)) | Overloaded. Projects each element of a sequence into a new form by incorporating the element's index.(Defined by Enumerable.) | |

SelectMany(Of Attachment, TResult)(Func(Of Attachment, IEnumerable(Of TResult))) | Overloaded. Projects each element of a sequence to an IEnumerable(Of T) and flattens the resulting sequences into one sequence.(Defined by Enumerable.) | |

SelectMany(Of Attachment, TResult)(Func(Of Attachment, Int32, IEnumerable(Of TResult))) | Overloaded. Projects each element of a sequence to an IEnumerable(Of T), and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.(Defined by Enumerable.) | |

SelectMany(Of Attachment, TCollection, TResult)(Func(Of Attachment, IEnumerable(Of TCollection)), Func(Of Attachment, TCollection, TResult)) | Overloaded. Projects each element of a sequence to an IEnumerable(Of T), flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.(Defined by Enumerable.) | |

SelectMany(Of Attachment, TCollection, TResult)(Func(Of Attachment, Int32, IEnumerable(Of TCollection)), Func(Of Attachment, TCollection, TResult)) | Overloaded. Projects each element of a sequence to an IEnumerable(Of T), flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element.(Defined by Enumerable.) | |

SequenceEqual(Of Attachment)(IEnumerable(Of Attachment)) | Overloaded. Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.(Defined by Enumerable.) | |

SequenceEqual(Of Attachment)(IEnumerable(Of Attachment), IEqualityComparer(Of Attachment)) | Overloaded. Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer(Of T).(Defined by Enumerable.) | |

Single(Of Attachment)() | Overloaded. Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.(Defined by Enumerable.) | |

Single(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.(Defined by Enumerable.) | |

SingleOrDefault(Of Attachment)() | Overloaded. Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.(Defined by Enumerable.) | |

SingleOrDefault(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.(Defined by Enumerable.) | |

Skip(Of Attachment)(Int32) | Bypasses a specified number of elements in a sequence and then returns the remaining elements.(Defined by Enumerable.) | |

SkipWhile(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.(Defined by Enumerable.) | |

SkipWhile(Of Attachment)(Func(Of Attachment, Int32, Boolean)) | Overloaded. Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Decimal)) | Overloaded. Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Double)) | Overloaded. Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Int32)) | Overloaded. Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Int64)) | Overloaded. Computes the sum of the sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Nullable(Of Decimal))) | Overloaded. Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Nullable(Of Double))) | Overloaded. Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Nullable(Of Int32))) | Overloaded. Computes the sum of the sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Nullable(Of Int64))) | Overloaded. Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Nullable(Of Single))) | Overloaded. Computes the sum of the sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Sum(Of Attachment)(Func(Of Attachment, Single)) | Overloaded. Computes the sum of the sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.) | |

Take(Of Attachment)(Int32) | Returns a specified number of contiguous elements from the start of a sequence.(Defined by Enumerable.) | |

TakeWhile(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Returns elements from a sequence as long as a specified condition is true.(Defined by Enumerable.) | |

TakeWhile(Of Attachment)(Func(Of Attachment, Int32, Boolean)) | Overloaded. Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.(Defined by Enumerable.) | |

ToArray(Of Attachment)() | Creates an array from a IEnumerable(Of T).(Defined by Enumerable.) | |

ToDictionary(Of Attachment, TKey)(Func(Of Attachment, TKey)) | Overloaded. Creates a Dictionary(Of TKey, TValue) from an IEnumerable(Of T) according to a specified key selector function.(Defined by Enumerable.) | |

ToDictionary(Of Attachment, TKey)(Func(Of Attachment, TKey), IEqualityComparer(Of TKey)) | Overloaded. Creates a Dictionary(Of TKey, TValue) from an IEnumerable(Of T) according to a specified key selector function and key comparer.(Defined by Enumerable.) | |

ToDictionary(Of Attachment, TKey, TElement)(Func(Of Attachment, TKey), Func(Of Attachment, TElement)) | Overloaded. Creates a Dictionary(Of TKey, TValue) from an IEnumerable(Of T) according to specified key selector and element selector functions.(Defined by Enumerable.) | |

ToDictionary(Of Attachment, TKey, TElement)(Func(Of Attachment, TKey), Func(Of Attachment, TElement), IEqualityComparer(Of TKey)) | Overloaded. Creates a Dictionary(Of TKey, TValue) from an IEnumerable(Of T) according to a specified key selector function, a comparer, and an element selector function.(Defined by Enumerable.) | |

ToList(Of Attachment)() | Creates a List(Of T) from an IEnumerable(Of T).(Defined by Enumerable.) | |

ToLookup(Of Attachment, TKey)(Func(Of Attachment, TKey)) | Overloaded. Creates a Lookup(Of TKey, TElement) from an IEnumerable(Of T) according to a specified key selector function.(Defined by Enumerable.) | |

ToLookup(Of Attachment, TKey)(Func(Of Attachment, TKey), IEqualityComparer(Of TKey)) | Overloaded. Creates a Lookup(Of TKey, TElement) from an IEnumerable(Of T) according to a specified key selector function and key comparer.(Defined by Enumerable.) | |

ToLookup(Of Attachment, TKey, TElement)(Func(Of Attachment, TKey), Func(Of Attachment, TElement)) | Overloaded. Creates a Lookup(Of TKey, TElement) from an IEnumerable(Of T) according to specified key selector and element selector functions.(Defined by Enumerable.) | |

ToLookup(Of Attachment, TKey, TElement)(Func(Of Attachment, TKey), Func(Of Attachment, TElement), IEqualityComparer(Of TKey)) | Overloaded. Creates a Lookup(Of TKey, TElement) from an IEnumerable(Of T) according to a specified key selector function, a comparer and an element selector function.(Defined by Enumerable.) | |

Union(Of Attachment)(IEnumerable(Of Attachment)) | Overloaded. Produces the set union of two sequences by using the default equality comparer.(Defined by Enumerable.) | |

Union(Of Attachment)(IEnumerable(Of Attachment), IEqualityComparer(Of Attachment)) | Overloaded. Produces the set union of two sequences by using a specified IEqualityComparer(Of T).(Defined by Enumerable.) | |

Where(Of Attachment)(Func(Of Attachment, Boolean)) | Overloaded. Filters a sequence of values based on a predicate.(Defined by Enumerable.) | |

Where(Of Attachment)(Func(Of Attachment, Int32, Boolean)) | Overloaded. Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.(Defined by Enumerable.) | |

Zip(Of Attachment, TSecond, TResult)(IEnumerable(Of TSecond), Func(Of Attachment, TSecond, TResult)) | Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.(Defined by Enumerable.) |

Instances of the AttachmentCollection class are returned by the MailMessage.AlternateViews and MailMessage.Attachments properties.

Use the AlternateViews property to specify copies of an e-mail message in different formats. For example, if you send a message in HTML, you might also want provide a plain text version in case some of the recipients use e-mail readers that cannot display HTML content.

Use the collection returned by the Attachments property to add an attachment, such as a file or the contents of a Stream to this MailMessage.

**.NET Framework**

Available since 2.0

Any public static (**Shared** in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.