160 lines
7.5 KiB
HTML
160 lines
7.5 KiB
HTML
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<title>General Rules | HiAPI-C# 2025 </title>
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<h1 id="general-rules">General Rules</h1>
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<div class="TIP">
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<h5>Tip</h5>
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<p>You MUST read the cited hyperlink before you do the job. ASK if you think the hyperlink is not work.</p>
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</div>
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<h2 id="handle-message-and-exception">Handle Message and Exception</h2>
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<p>If message is well-managed, apply <a class="xref" href="../../../api/Hi.Common.Messages.MessageKit.html">MessageKit</a> to show the message; if the message is <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.exception">Exception</a>, apply <a class="xref" href="../../../api/Hi.Common.ExceptionUtil.html">ExceptionUtil</a>.<a class="xref" href="../../../api/Hi.Common.ExceptionUtil.html#Hi_Common_ExceptionUtil_ShowException_System_Exception_System_Object_">ShowException(Exception, object)</a> to show the exception for detail treatment. The messages are shown in <a href="message-section-on-main-panel.html">Message Section on Main Panel</a>.</p>
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<p>For examples of message and exception handling patterns:</p>
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<ol>
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<li>Normal message handling:</li>
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</ol>
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<pre><code class="lang-csharp" name="Normal Messages">MessageKit.AddMessage("Operation completed successfully.");
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MessageKit.AddWarning("Please check your input.");
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</code></pre>
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<ol start="2">
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<li>Exception handling in synchronous code:</li>
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</ol>
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<pre><code class="lang-csharp" name="Sync Exception">try
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{
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// Your code here
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throw new NotImplementedException("Demo exception");
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}
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catch (Exception ex)
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{
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ExceptionUtil.ShowException(ex, null);
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}
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</code></pre>
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<ol start="3">
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<li>Exception handling in asynchronous code:</li>
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</ol>
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<pre><code class="lang-csharp" name="Async Exception">await Task.Run(() =>
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{
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// Your async operation here
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throw new NotImplementedException("Demo async exception");
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}).ShowIfCatched(null);
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</code></pre>
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<p>The examples are in project Hi.Sample. See <a href="index.html">this page</a> for git repository.</p>
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<h2 id="loose-manner">Loose Manner</h2>
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<p>Run Skippable Rapid Calling Synchronous Action in Loose Manner.</p>
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<p>Some synchronous action may be calling rapidly but only the last call has to be effective (or it is endurable to loss some previous action call). Define a <a class="xref" href="../../../api/Hi.Common.LooseRunner.html">LooseRunner</a> and apply <a class="xref" href="../../../api/Hi.Common.LooseRunner.html">LooseRunner</a>.<a class="xref" href="../../../api/Hi.Common.LooseRunner.html#Hi_Common_LooseRunner_TryRun_System_Action_System_Threading_CancellationToken__">TryRun(Action<CancellationToken>)</a> to run the action.</p>
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<p>Dispose the <a class="xref" href="../../../api/Hi.Common.LooseRunner.html">LooseRunner</a> on owner disposing to ensure the tryrun action is well-managed.</p>
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<h2 id="gui-file-path-assignment">GUI File Path Assignment</h2>
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<p>See <a href="widget/gui-file-path-assignment.html">GUI File Path Assignment</a>.</p>
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<h2 id="translation-remarks">Translation Remarks</h2>
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<p>See <a href="translation-remarks.html">Translation Remarks</a>.</p>
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</article>
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