2025-09-16 12:24:06 +08:00

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<h1 id="session-message-panel">Session Message Panel</h1>
<p>The model is <a class="xref" href="../../../../api/Hi.MachiningProcs.MachiningProject.html">MachiningProject</a>.<a class="xref" href="../../../../api/Hi.MachiningProcs.MachiningProject.html#Hi_MachiningProcs_MachiningProject_SessionMessageHost">SessionMessageHost</a>.</p>
<p><a class="xref" href="../../../../api/Hi.MachiningProcs.MachiningProject.html">MachiningProject</a> is assigned from the <a href="../player/index.html">Player Panel</a>.</p>
<h2 id="layout">Layout</h2>
<ul>
<li>Top Message Filter ToolBar
<ul>
<li>Message Type Filter SubMenu
<ul>
<li>NC CheckBox</li>
<li>Progress CheckBox</li>
<li>Error CheckBox</li>
</ul>
</li>
<li>Message Text Filter Input
<ul>
<li>Message Text Filter Input Text Area</li>
<li>Message Text Filter Reset Button</li>
</ul>
</li>
<li>Export Button</li>
</ul>
</li>
<li>Central Message Table</li>
</ul>
<h2 id="central-message-table">Central Message Table</h2>
<p>The model of Central Message Table is <a class="xref" href="../../../../api/Hi.MachiningProcs.SessionMessageHost.html">SessionMessageHost</a>.<a class="xref" href="../../../../api/Hi.MachiningProcs.SessionMessageHost.html#Hi_MachiningProcs_SessionMessageHost_MessageCollection">MessageCollection</a>.</p>
<p>Only take last 1000 filtered elements in the <a class="xref" href="../../../../api/Hi.MachiningProcs.SessionMessageHost.html#Hi_MachiningProcs_SessionMessageHost_MessageCollection">MessageCollection</a> by <a class="xref" href="../../../../api/Hi.MachiningProcs.SessionMessageHost.html#Hi_MachiningProcs_SessionMessageHost_GetFliteredList_Hi_MachiningProcs_SessionMessageHost_FilterFlag_System_String_">GetFliteredList(FilterFlag, string)</a> to show for user experience. Find the usage example in the code:</p>
<pre><code class="lang-csharp" name="Demo_UseSessionMessageHost">internal static void DemoUseSessionMessageHost(MachiningProject project)
{
SessionMessageHost sessionMessageHost = project.SessionMessageHost;
SessionMessageHost.FilterFlag filterFlags =
SessionMessageHost.FilterFlag.NC |
SessionMessageHost.FilterFlag.Progress |
SessionMessageHost.FilterFlag.Error;
string filterText = null;
var filteredSessionMessageList = sessionMessageHost
.GetFliteredList(filterFlags, filterText);
foreach (var sessionMessage in filteredSessionMessageList)
{
//M.I.: Message Index.
Console.Write($&quot;M.I.: {sessionMessage.Index}; Role: {sessionMessage.MessageRoleText}&quot;);
// For SessionMessageHost.FilterFlag.NC
var nc = sessionMessage.DirectInstantSourceCommand;
if (nc != null)
Console.Write($&quot;Message/NC: {nc.Line}; File: {nc.FilePath}; LineNo: {nc.GetLineNo()}; &quot;);
// For SessionMessageHost.FilterFlag.Progress or Error.
var multiTagMessage = sessionMessage.MultiTagMessage;
if (multiTagMessage != null)
Console.WriteLine($&quot;Message/NC: {multiTagMessage.Message}&quot;);
var exception = sessionMessage.Exception;
if (exception != null)
Console.WriteLine($&quot;Message/NC: {exception.Message}&quot;);
}
File.WriteAllLines(&quot;output-session-messages.txt&quot;,
filteredSessionMessageList.Select(m =&gt;
$&quot;Msg[{m.Index}][{m.MessageRoleText}]: {m}&quot;));
}
</code></pre>
<p>In the table, show the columns: <code>Role</code>, <code>NC/Message</code>.</p>
<p>Add update table event to <a class="xref" href="../../../../api/Hi.MachiningProcs.SessionMessageHost.html#Hi_MachiningProcs_SessionMessageHost_CollectionItemChanged">CollectionItemChanged</a>. The updating process has to be called by <a href="../general-rules.html">Loose Manner</a> for user experience.</p>
<div class="TIP">
<h5>Tip</h5>
<p>On window desktop application (WPF), consider use textarea instead of datagrid to MessageTable for better performance. Use padding to show the different columns. And use the font in the textarea that with consistent width.</p>
</div>
<div class="NOTE">
<h5>Note</h5>
<p>The message display should be real-time.</p>
</div>
<h2 id="behavior-of-export-button">Behavior of Export Button</h2>
<p>Export ALL filtered elements in the <a class="xref" href="../../../../api/Hi.MachiningProcs.SessionMessageHost.html#Hi_MachiningProcs_SessionMessageHost_MessageCollection">MessageCollection</a> by <a class="xref" href="../../../../api/Hi.MachiningProcs.SessionMessageHost.html#Hi_MachiningProcs_SessionMessageHost_GetFliteredList_Hi_MachiningProcs_SessionMessageHost_FilterFlag_System_String_">GetFliteredList(FilterFlag, string)</a>.</p>
<h2 id="signalr-implementation-webapi-only">SignalR Implementation (Webapi Only)</h2>
<p><code>SessionMessageHub</code> provides real-time message updates with method <code>GetSessionMessages(string filterFlags, string filterText, int limit)</code> and event <code>SessionMessagesUpdated</code>. <code>SessionMessageService</code> monitors <a class="xref" href="../../../../api/Hi.MachiningProcs.LocalProjectService.html#Hi_MachiningProcs_LocalProjectService_SessionMessageHost_CollectionItemChanged">SessionMessageHost_CollectionItemChanged</a> and broadcasts updates. The service uses <a class="xref" href="../../../../api/Hi.Common.LooseRunner.html">LooseRunner</a> for non-blocking async operations. The JavaScript component connects to <code>/sessionMessageHub</code> to receive real-time message updates.</p>
<h2 id="source-code-path">Source Code Path</h2>
<p>See <a href="../index.html">this page</a> for git repository.</p>
<h3 id="wpf-application-source-code-path">WPF Application Source Code Path</h3>
<ul>
<li>Play/SessionMessagePanel</li>
</ul>
<h3 id="web-page-application-source-code-path">Web Page Application Source Code Path</h3>
<ul>
<li>wwwroot/player/session-message-panel.js (Vue component)</li>
<li>Players/PlayerController.cs (REST API - GetSessionMessages endpoint)</li>
<li>Players/SessionMessageService.cs (Business logic)</li>
<li>Players/SessionMessageHub.cs (SignalR Hub for real-time updates)</li>
</ul>
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