CODEWITHSUNDEEP
silverlightwcfsilverlight-4.0
Everest
Everest

Reputation: 580

Silverlight calling WCF

I am new to silverlight, just wanted know if the steps involved in calling the WCF service same in Silverlight as it was in asp or is there any difference.If there is any difference then request you to help me out.

Thanks in advance.

Upvotes: 1

Views: 167

Answers (2)

Everest
Everest

Reputation: 580

I got the answer, there is slight difference between asp and silverlight. In silverlight all service calls are asynchronous, so you have to have an eventhandler for when the async call is completed you get your data.

Just a small e.g

When you call your WCF service from asp, you use

proxy_http.FunctionClient fc = new proxy_http.FunctionClient();
        txtDisplay.Text = fc.Add(Convert.ToInt32(txtFirst.Text),Convert.ToInt32(txtSecond.Text)).ToString();

in case of Silverlight you will use

private void Add_Click(object sender, RoutedEventArgs e)
    {
        proxy_htt.FunctionClient fc = new proxy_htt.FunctionClient();
        fc.AddCompleted += new EventHandler<proxy_htt.AddCompletedEventArgs>(fc_AddCompleted); 
        fc.AddAsync(Convert.ToInt32(txtFirst.Text),Convert.ToInt32(txtSecond.Text));

    }

    void fc_AddCompleted(object sender, proxy_htt.AddCompletedEventArgs e)
    {
        txtResult.Text = e.Result.ToString();
    }

Upvotes: 1

wizzardz
wizzardz

Reputation: 5874

The main things that you needs aware are

  1. silverlight support only basichttpbinding
  2. you need to have either clientaccesspolicy.xml file or crossdomain.xml in your root folder of wcf host server, then only you can successfully call a webservice from silerlight

http://msdn.microsoft.com/en-us/library/cc197955%28v=vs.95%29.aspx

Upvotes: 1

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