C＃HttpClient Uri值

Question

I'm working on creating a WindowsPhone 8.1 app, and I'm having trouble getting the client to access the database. I created a server-side project that works fine using web api. I'm able to run debugger and add "/api/entityName" to return a list of all the rows in that table or just a single row if I specify an id value. After doing a lot of testing on the client side, I think I've pinpointed my error: the uri value. Can someone tell me what value I should be passing into the uri constructor? Here's the method that I'm using in the client:

public async void GetBars()
    {
        var uri = new Uri("http://localhost:20672/tables/bars"); //seems like this value is the problem
        var httpClient = new HttpClient();

        barsListBox.Items.Add("right before try starts");
        // Always catch network exceptions for async methods
        try
        {
            barsListBox.Items.Add("try started");
            var result = await httpClient.GetStringAsync(uri); //never gets past this line. goes straight to finally
            barsListBox.Items.Add("right before linq");
            var queryAllBars =
                from bar in result
                select bar;
            barsListBox.Items.Add("linq finished");
            foreach (var bar in queryAllBars)
            {
                barsListBox.Items.Add(bar);
            }
        }
        catch
        {
            // Details in ex.Message and ex.HResult.       
        }
        finally
        {
            barsListBox.Items.Add("finally executed");
            httpClient.Dispose();
        }


    }

The database is a SQL Server database being hosted on Azure. I've tried using the URL listed for the database in Azure, my current IP address, just about every combination of using/excluding the port number, etc but nothing seems to work. I don't get any errors, but I also don't get anything displayed in the UI (except for the testing statements I've entered). Try started gets printed, but right before linq doesn't, which is why I believe my problem is coming from the uri value being passed int GetStringAsync. Thanks for the help.

Answer 1

You can Try like this

                using (var client = new HttpClient())
                {

                    client.BaseAddress = new Uri("http://Ipaddress/mammo/");
                    client.DefaultRequestHeaders.Accept.Clear();
                    client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

                    HttpResponseMessage response = await client.GetAsync("api/controllername");

                        if (response.IsSuccessStatusCode)
                        {   
                           IList<something> data = await response.Content.ReadAsAsync<IList<something>>();
                        }
               }

Answer 2

Thanks to @Midhun's answer and other answers I received, I was able to get the bars to print correctly. I used Midhun's code above with the uri of my hosted database (the azurewebsites.net url) instead of my localhost database. I also changed the IList to a String and wrote a method that picks out the values using IndexOf and Substring as follows:

start = bar.IndexOf("BarID", start) + 7;
int end = bar.IndexOf(",", start);
int id = Convert.ToInt32(bar.Substring(start, (end - start)));
Bars newBar = new Bars(id, name, street, city, state, phone, zip);
Bars.barsList.Add(newBar);

I then created a static list in my Bars model to add the newly created Bars items to.