[BUG] async Task<T> is not defined in QueryAsync method in TableClient class about azure-sdk-for-net

[jsquire]

Hi @JicoDotNet. Thank you for reaching out and we regret that you're experiencing difficulties. The method signatures are correct. They are intended to represent an IAsyncEnumerable<T> that you can iterate through rather than a Task<T>. Your application would consume this in the same way as the Query Tables example demonstrates, but using the asynchronous form:

AsyncPageable<TableItem> queryTableResults = serviceClient.QueryAsync(filter: $"TableName eq '{tableName}'");
Console.WriteLine("The following are the names of the tables in the query results:");

// Iterate the <see cref="Pageable"> in order to access queried tables.

await foreach (TableItem table in queryTableResults)
{
    Console.WriteLine(table.Name);
}

More information can be found in Iterating with Async Enumerables in C# 8.

[github-actions]

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[JicoDotNet]

Hi @jsquire, Thanks for your support. Can you please help me on the code below. I'm getting an error for this code block.

public async Task<List<Person>> GetPersons(string Query)
{
    try
    {
        TableServiceClient tableServiceClient = new TableServiceClient("my_storage_account_connection_string");
        TableClient myTableClient = tableServiceClient.GetTableClient("my_table_name");
        return await myTableClient.QueryAsync<Person>(Query).ToBlockingEnumerable().ToList();
    }
    catch (Exception)
    {
        throw;
    }
}

Receiving below ERROR.

Error CS1061 'List' does not contain a definition for 'GetAwaiter' and no accessible extension method 'GetAwaiter' accepting a first argument of type 'List' could be found (are you missing a using directive or an assembly reference?)

[jsquire]

The standard ToList only works with IEnumerable<T>, not with IAsyncEnumerable<T>. Your options would be to consider using a package like System.Linq.Async to give you assess to ToListAsync() or you would need to write your own loop to do the conversion:

var results = new List<TableItem>();
var queryTableResults = serviceClient.QueryAsync(filter: $"TableName eq '{tableName}'");

await foreach (TableItem table in queryTableResults)
{
    results.Add(table);
}