[This topic is part of the Microsoft Azure Storage Client Library 1.7, which has been deprecated. See
Storage Client Library for the latest version.]
Begins an asynchronous operation to create a table with the specified name if it does not already exist.
Namespace: Microsoft.WindowsAzure.StorageClient
Assembly: Microsoft.WindowsAzure.StorageClient (in Microsoft.WindowsAzure.StorageClient.dll)
Usage
| Visual Basic |
|---|
Dim instance As CloudTableClient
Dim tableName As String
Dim callback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginCreateTableIfNotExist(tableName, callback, state) |
Syntax
| Visual Basic |
|---|
Public Function BeginCreateTableIfNotExist ( _
tableName As String, _
callback As AsyncCallback, _
state As Object _
) As IAsyncResult |
| C# |
|---|
public IAsyncResult BeginCreateTableIfNotExist (
string tableName,
AsyncCallback callback,
Object state
) |
| C++ |
|---|
public:
IAsyncResult^ BeginCreateTableIfNotExist (
String^ tableName,
AsyncCallback^ callback,
Object^ state
) |
Parameters
- tableName
Type: System.String
The table name.
- callback
Type: System.AsyncCallback
The callback delegate that will receive notification when the asynchronous operation completes.
- state
Type: System.Object
A user-defined object that will be passed to the callback delegate.
Return Value
Type:
System.IAsyncResultAn
IAsyncResult that references the asynchronous operation.
Example
The following code example creates a table asynchronously if it does not exist.
| C# |  Copy Code |
|---|
static void CreateTableIfNotExistsAsync(CloudStorageAccount storageAccount)
{
// Create service client for credentialed access to the Table service.
CloudTableClient tableClient =
new CloudTableClient(
storageAccount.TableEndpoint.ToString(),
storageAccount.Credentials);
// Begin the operation to create a new table.
tableClient.BeginCreateTableIfNotExist(
"Categories", CreateTableIfNotExistsAsyncCallback, tableClient);
}
public static void CreateTableIfNotExistsAsyncCallback(IAsyncResult result)
{
CloudTableClient tableClient = (CloudTableClient)result.AsyncState;
// End the operation.
if (tableClient.EndCreateTableIfNotExist(result))
{
Console.WriteLine("Table created.");
}
} |
Remarks
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.
Platforms
Change History
See Also
