| CloudBlockBlob.DeleteIfExistsAsync Method (DeleteSnapshotsOption, AccessCondition, BlobRequestOptions, OperationContext) |
| See Also |
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Deletes the blob if it already exists.
Namespace: Microsoft.WindowsAzure.Storage.Blob
Assembly: Microsoft.WindowsAzure.Storage (in Microsoft.WindowsAzure.Storage.dll)
Assembly: Microsoft.WindowsAzure.Storage (in Microsoft.WindowsAzure.Storage.dll)
Usage
| Visual Basic |
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Dim instance As CloudBlockBlob Dim deleteSnapshotsOption As DeleteSnapshotsOption Dim accessCondition As AccessCondition Dim options As BlobRequestOptions Dim operationContext As OperationContext Dim returnValue As IAsyncOperation(Of Boolean) returnValue = instance.DeleteIfExistsAsync(deleteSnapshotsOption, accessCondition, options, operationContext) |
Syntax
| Visual Basic |
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Public Function DeleteIfExistsAsync ( _ deleteSnapshotsOption As DeleteSnapshotsOption, _ accessCondition As AccessCondition, _ options As BlobRequestOptions, _ operationContext As OperationContext _ ) As IAsyncOperation(Of Boolean) |
| C# |
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public IAsyncOperation<bool> DeleteIfExistsAsync ( DeleteSnapshotsOption deleteSnapshotsOption, AccessCondition accessCondition, BlobRequestOptions options, OperationContext operationContext ) |
| C++ |
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public: virtual IAsyncOperation<bool>^ DeleteIfExistsAsync ( DeleteSnapshotsOption deleteSnapshotsOption, AccessCondition^ accessCondition, BlobRequestOptions^ options, OperationContext^ operationContext ) sealed |
| J# |
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public final IAsyncOperation<boolean> DeleteIfExistsAsync ( DeleteSnapshotsOption deleteSnapshotsOption, AccessCondition accessCondition, BlobRequestOptions options, OperationContext operationContext ) |
| JScript |
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public final function DeleteIfExistsAsync ( deleteSnapshotsOption : DeleteSnapshotsOption, accessCondition : AccessCondition, options : BlobRequestOptions, operationContext : OperationContext ) : IAsyncOperation<boolean> |
Parameters
- deleteSnapshotsOption
Whether to only delete the blob, to delete the blob and all snapshots, or to only delete the snapshots.
- accessCondition
An AccessCondition object that represents the access conditions for the blob. If
null, no condition is used.
- options
A BlobRequestOptions object that specifies additional options for the request.
- operationContext
An OperationContext object that represents the context for the current operation.
Return Value
true if the blob already existed and was deleted; otherwise, false.
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.