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POC# How to handle multiple exceptions which does all the same?
 

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  1. POC# How to handle multiple exceptions which does all the same?
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    <p>In my code I have a method with multiple catch statements, which perform all the same statement. I'm not sure this is the correct way to implement this. How would you do this? </p> <pre><code>public void LoadControl(ControlDestination controlDestination, string filename, object parameter) { try { // Get filename with extension string file = GetControlFileName(filename); // Check file exists if (!File.Exists(file)) throw new FileNotFoundException(); // Load control from file Control control = LoadControl(filename); // Check control extends BaseForm if (control is BaseForm) { // Set current application on user control ((BaseForm)control).CurrentApplication = this; ((BaseForm)control).Parameter = parameter; // Set web user control id control.ID = filename; Panel currentPanel = null; switch (controlDestination) { case ControlDestination.Base: // Set current panel to Base Content currentPanel = pnlBaseContent; // Set control in viewstate this.BaseControl = filename; break; case ControlDestination.Menu: // Set current panel to Menu Content currentPanel = pnlMenuContent; // Set control in ViewState this.MenuBaseControl = filename; break; } currentPanel.Controls.Clear(); currentPanel.Controls.Add(control); UpdateMenuBasePanel(); UpdateBasePanel(); } else { throw new IncorrectInheritanceException(); } } catch (FileNotFoundException e) { HandleException(e); } catch (ArgumentNullException e) { HandleException(e); } catch (HttpException e) { HandleException(e); } catch (IncorrectInheritanceException e) { HandleException(e); } } </code></pre> <p>This is how HandleException looks like:</p> <pre><code>private void HandleException(Exception exception) { // Load error control which shows big red cross LoadControl(ControlDestination.Menu, "~/Controls/Error.ascx", null); // Store error in database DHS.Core.DhsLogDatabase.WriteError(exception.ToString()); // Show error in errorbox on master Master.ShowAjaxError(this, new CommandEventArgs("ajaxError", exception.ToString())); } </code></pre>
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      1. POC# How to handle multiple exceptions which does all the same?
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    1. CODo not catch ArgumentNullException, avoid it!
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      1. POC# How to handle multiple exceptions which does all the same?
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    2. COI think that this is the way I'd choose to do this - yes its a bit long winded but you're explicit about what you're doing and it allows you to take additional steps as appropriate to each case
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      1. POC# How to handle multiple exceptions which does all the same?
      1. USMurph
 

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