Determine exceptions type in try... catch... in c#

Question

3.00/5 (3 votes)

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I want to determine the Exception type inside my catch block:

try 
{
    // ...
}
catch (Exception ex)
{
    if (ex == UnauthorizedAccessException)  // ??
    {
        // ...
    }
    else
    {
        // ...
    }
}

Posted 11-Dec-10 0:32am

AEKirin

Updated 11-Dec-10 1:33am

Toli Cuturicu

v2

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Comments

Abdul Quader Mamun 11-Dec-10 6:36am

Use pre tag

3 solutions

Solution 2

You can use GetType() function to determine which exception is generate in Catch block.

try
         {

         }
         catch (Exception ex)
         {
             MessageBox.Show(ex.GetType().ToString()); // It will Display Message type
         }

:)

Posted 11-Dec-10 0:45am

RaviRanjanKr

Updated 11-Dec-10 0:46am

v2

Solution 3

C#

try
{
    // ...
}
catch (UnauthorizedAccessException)
{
    // ...
}
catch (Exception)
{
    // ...
}

Something like this.

Posted 11-Dec-10 1:35am

Toli Cuturicu

Updated 11-Dec-10 1:36am

v2

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Abdul Quader Mamun · Accepted Answer · 2010-12-11T00:43:00

Solution 1

You can try like bellow code.

C#

try
{
    // do something that could throw an exception
}
catch(Exception e)
{
    if (e is FileNotFoundException)
    {
        // •••
    }
    else if (e is DivideByZeroException)
    {
        // •••
    }
    else throw;
}

Thanks

Posted 11-Dec-10 0:43am

Abdul Quader Mamun

Updated 11-Dec-10 0:48am

v2