Exception in c#

Hi,

Iam getting the exception as mentioned below. Can u pls solve this issue.

A first chance exception of type 'System.InvalidCastException' occurred in App9.exe

'App9.exe' (Managed (v4.0.30319)): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Diagnostics.Debug\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Diagnostics.Debug.dll'

Step into: Stepping over method without symbols 'System.Exception.ToString'

Code:

private void textloaded(object sender, RoutedEventArgs e) //Added tyhis function to access textblock in datatemplate.

{

TextBlock tb = (TextBlock)sender;

tb.Visibility = Visibility.Visible; //exception at this line.

}

void dispatcherTimer_Tick(object sender, object e)

{

DateTimeOffset time = DateTimeOffset.Now;

TimeSpan span = time - lastTime;

lastTime = time;

timesTicked++;

if (timesTicked == 10)

{

RoutedEventArgs routedEventArgs = new RoutedEventArgs();

textloaded(sender, routedEventArgs);

}

if (timesTicked > timesToTick)

{

stopTime = time;

dispatcherTimer.Stop();

span = stopTime - startTime;

}

Thank you,

syamala.

2 Replies

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surya syamala13y ago
I want to make the textblock visible at a particular tick where(tick = 10).But unable to do that .I can use try-catch to avoid exception.But how can I make my textblock visible.?
Iam struggling on this issue for 1 day.can u pls help me on this issue.

Thank u,
syamala.
0
Sreejesh SP13y ago
Dear surya,

                Please include try catch in ur code

Fro example

protected void(object sender,eventargument e)
{
    try
    {

     }
     catch(exception ex)
     {
            through ex
     }

}

thanks,

sreejesh
0