| Author: Naganathan 24 Oct 2009 | Member Level: Bronze | Rating:  Points: 2 |
using callback function and delegates we can consume webservice asynchronously .
Regards,
Naganathan
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| Author: Chandru 28 Oct 2009 | Member Level: Silver | Rating: Points: 2 |
Try to use ajax goto http://netprogramminghelp.com,you can find article.
Chandru
SilverlightScripting.com
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| Author: Joby 17 Nov 2009 | Member Level: Bronze | Rating: Points: 2 |
The method which invok the webservice
private void button1_Click(object sender, System.EventArgs e)
{
peter.Service1 ws = new CSharpTester.peter.Service1();
//GetDataSet() is the method in the webservice. Webservice //automatically expose BeginGetDataSet() and EndGetDataSet() for my //GetDataSet() method. Intellisence will give you both these method //when ur typying the webservice object.(here ws.)
//"Testing 1234" is the parameter whis is expected by webmethod
//WsCallback is the callback method given below, which is defined by //me
ws.BeginGetDataSet("Testing 1234",new AsyncCallback(WsCallback),ws);
}
private void WsCallback( IAsyncResult ar)
{
//Create an object of wesrvice of callback method's IAsyncResult //param
peter.Service1 ws = (peter.Service1)ar.AsyncState;
//EndGetDataSet() is exposed by system itself.
DataSet ds = ws.EndGetDataSet(ar);
private void button1_Click(object sender, System.EventArgs e)
{
peter.Service1 ws = new CSharpTester.peter.Service1();
ws.BeginGetDataSet("Testing 1234",new AsyncCallback(WsCallback),ws);
}
private void WsCallback( IAsyncResult ar)
{
peter.Service1 ws = (peter.Service1)ar.AsyncState;
//The webmethod GetDataSet() is returning a dataset.
DataSet ds = ws.EndGetDataSet(ar);
//Just assigning the value to label
this.label1.Text=(string)ds.Tables[0].Rows[0]["test"];
}
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