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POException Handling in PageBase ASP.NET Web form?
 

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    <p>1)I have the PageBase class that inherits from Page Class. The all code behind inherit from PageBase class. So I want to add the exception handling logic to PageBase class.</p> <p>In Page_Error Event I added the logic to handle the exception, but the I want page to be rendered properly with exception details showing on the top of Web Page.</p> <p>e.g</p> <p>On web form I have button control that updates the data in Database. On button click i have the logic to update the data. While updating it may throw exception. I dont want to put Try catch block on button click save logic. Instead I want some method or event on PageBase to catch the exception and render the page entirely with all controls and exception in the header.</p> <p>2)`// in the Base class of CodeBehind page, I have Written</p> <pre><code>protected void TryAction(Action action) { try { action(); } catch(Exception e) { // write exception to output (Response.Write(str)) } } </code></pre> <p>In CodeBehind I have written the code for Button Click Event</p> <pre><code>Private List&lt;T&gt; GetData(string a, string b) { List&lt;T&gt; _lst; TryAction(()=&gt;{ //Call BLL Method to retrieve the list of BO. _lst = BLLInstance.GetAllList(a,b); }); return _lst; } </code></pre> <p>This Works fine, I want,</p> <pre><code>Private List&lt;T&gt; GetData(string a, string b) { TryAction(()=&gt;{ //Call BLL Method to retrieve the list of BO. return BLLInstance.GetAllList(a,b); }); } </code></pre> <p>It is Showing the Error"System.Action retuens void", Can you please tell me how to use TryAction Method if we have return type.</p>
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