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silverlight datagrid - WCF Service Data auto refresh

i have silverlight page, it has a datagrid. I have created a WCF service which generates data for that datagrid. In my silverlight page, i call that service as shown below

MyService.MyServiceClient mysvcclient1;
mysvcclient1= new MyService.MyServiceClient();
mysvcclient1.GetDataGridDataCompleted += new EventHandler<MyService.GetDataGridDataCompletedEventArgs>(CompletedHereGetDataGrid);
mysvcclient1.GetDataGridDataAsync();
mysvcclient1.CloseAsync();
}

now i want to refresh that data every 30 seconds... what is the best way to do that?

thanks....

at999

Asked: 2013-01-08

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1 Solution

LVL 25

apeterCommented: 2013-01-09

Have a Timer in silverlight and refresh your datagrid.

1. When making call , stop the timer.
2. When the async call comes back , start the timer.

at999Author Commented: 2013-01-09

can you pl give the code? thanks

LVL 29

Gautham JanardhanCommented: 2013-02-19

this shud do the trick

public partial class MainPage : UserControl
    {
        DispatcherTimer tmr;

        public MainPage()
        {
            InitializeComponent();
            TimerInit();
            CallService();
        }

        private void TimerInit()
        {
            tmr = new DispatcherTimer();
            tmr.Interval = TimeSpan.FromSeconds(30);
            tmr.Tick += delegate
            {
                CallService();
            };
        }

        private void CallService()
        {
            tmr.Stop();
            MyService.MyServiceClient mysvcclient1;
            mysvcclient1 = new MyService.MyServiceClient();
            mysvcclient1.GetDataGridDataCompleted += new EventHandler<MyService.GetDataGridDataCompletedEventArgs>(CompletedHereGetDataGrid);
            mysvcclient1.GetDataGridDataAsync();
        }

        public void CompletedHereGetDataGrid.........
        {
            tmr.Start();
        }
    }

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at999Author Commented: 2013-03-02

thanks so much gauthampj, will my GUI be stuck when i start DispatcherTimer ? i mean if i start DispatcherTimer will user be able to click other buttons on my silverlight page? please help,,,, many thanks

LVL 29

Gautham JanardhanCommented: 2013-03-03

since the service call itself is async it shudnt make any diff to the user.

at999Author Commented: 2013-03-04

thanks a lot

at999Author Commented: 2013-03-04

i was able to do the way you advised thanks again

LVL 25

apeterCommented: 2013-03-04

Not even few points for me...idea was mine.

at999Author Commented: 2013-03-05

oh how did i miss it... i am so sorry apeter,,, next time....

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silverlight datagrid - WCF Service Data auto refresh

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