[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.]
Creates the table if it does not already exist. Namespace: Microsoft.WindowsAzure.StorageClient
Assembly: Microsoft.WindowsAzure.StorageClient (in Microsoft.WindowsAzure.StorageClient.dll)
Creates the table 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 returnValue As Boolean returnValue = instance.CreateTableIfNotExist(tableName) |
Syntax
| Visual Basic |
|---|
Public Function CreateTableIfNotExist ( _ tableName As String _ ) As Boolean |
| C# |
|---|
public bool CreateTableIfNotExist ( string tableName ) |
| C++ |
|---|
public: bool CreateTableIfNotExist ( String^ tableName ) |
| J# |
|---|
| JScript |
|---|
Parameters
- tableName
Type: System.String
The table name.
Return Value
Type: System.Booleantrue if table was created; otherwise, false.
Example
The following code example creates a table if it does not already exist, then inserts a new entity.
| C# | Copy Code |
|---|---|
using System;
using System.Configuration;
using Microsoft.WindowsAzure;
using Microsoft.WindowsAzure.StorageClient;
namespace TableSamples
{
class Program
{
static void Main(string[] args)
{
// Get connection string from a configuration file.
CloudStorageAccount storageAccount =
CloudStorageAccount.Parse(
ConfigurationManager.AppSettings["StorageAccountConnectionString"]);
CreateTableAndAddData(storageAccount);
}
static void CreateTableAndAddData(CloudStorageAccount storageAccount)
{
// Create service client for credentialed access to the Table service.
CloudTableClient tableClient = new CloudTableClient(storageAccount.TableEndpoint.ToString(),
storageAccount.Credentials);
string tableName = "Products";
try
{
// Create a new table.
tableClient.CreateTableIfNotExist(tableName);
// Get data context.
TableServiceContext context = tableClient.GetDataServiceContext();
// Create the new entity.
ProductEntity entity = new ProductEntity();
// Populate the entity's properties.
entity.ProductName = "Gadget";
entity.Category = "Widgets";
entity.Price = 19.99;
entity.InStock = true;
entity.DateAdded = DateTime.Now;
entity.Quantity = 50;
// Partition key is the category name.
entity.PartitionKey = entity.Category;
// Row key is a GUID.
entity.RowKey = Guid.NewGuid().ToString();
// Add the entity.
context.AddObject(tableName, entity);
// Save changes to the service.
context.SaveChanges();
}
catch (StorageClientException e)
{
Console.WriteLine("Error: {0}", e.Message);
Console.WriteLine("Extended error info: {0} : {1}",
e.ExtendedErrorInformation.ErrorCode,
e.ExtendedErrorInformation.ErrorMessage);
}
}
// Define a class that represents an entity.
class ProductEntity : TableServiceEntity
{
public ProductEntity()
{
}
public string ProductName { get; set; }
public string Category { get; set; }
public double Price { get; set; }
public bool InStock { get; set; }
public DateTime DateAdded { get; set; }
public Int32 Quantity { get; set; }
}
}
} | |
Remarks
For guidance about valid table names, see the "Table Names" section in Understanding the Table Service Data Model.
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.