## 主要改进 - 实现 /api/status/model 接口,返回真实PDMS模型状态信息 - 使用MDB.CurrentMDB、Project.CurrentProject等AVEVA API获取真实数据 - 移除硬编码的CurrentSession、PositionInfo、PdmsSpecific等复杂结构 - 简化数据模型,只保留核心的真实数据字段 ## 技术实现 - 通过DbSession获取真实的用户名、会话开始时间和持续时间 - 通过WorldMembers()获取真实的模型元素统计 - 修复DateTime类型的null合并运算符编译错误 - 清理不使用的方法和类定义 ## API返回数据 现在返回的数据主要包含真实的PDMS信息: - ModelLoaded: MDB连接状态检查 - ProjectName: 真实的设计数据库名称 - MdsName: 真实的MDB名称 - UserName: 真实的数据库会话用户 - StartTime: 真实的会话创建时间 - TotalElements: 真实的模型元素数量统计 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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<title>Command Properties</title>
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<td class="runninghead">Common Application Framework</td>
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<h1 class="dtH1">Command Properties</h1>
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<p>The properties of the <b>Command</b> class are listed below. For a complete list of <b>Command</b> class members, see the <a href="Aveva.ApplicationFramework.Presentation.CommandMembers.html">Command Members</a> topic.</p>
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<h4 class="dtH4">Public Instance Properties</h4>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.Checked.html">Checked</a></td><td width="50%"> Gets or sets if the command is in a checked state. Setting this value will set the CommandExecutor.Checked property on all attached CommandExecutors. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.Description.html">Description</a></td><td width="50%"> Description for the command </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.Enabled.html">Enabled</a></td><td width="50%"> Gets or sets if the command is enabled. Setting this value will set the CommandExecutor.Enabled property on all attached CommandExecutors. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.ExecuteOnCheckedChange.html">ExecuteOnCheckedChange</a></td><td width="50%">
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</td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.Internal.html">Internal</a></td><td width="50%"> Flag to control the visibility of the command in Customization dialog </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.IsValid.html">IsValid</a></td><td width="50%"> Gets the IsValid status of the command. A Command may become invalid in some application context. Method can be overriden in a derived class. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.Key.html">Key</a></td><td width="50%"> The commands key in the CommandCollection </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.List.html">List</a></td><td width="50%"> ArrayList which can contain data to be presented in the GUI </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.SelectedIndex.html">SelectedIndex</a></td><td width="50%"> Used to comunicate to the command which item in the list was selected </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.Value.html">Value</a></td><td width="50%"> Setting this value will set the CommandExecutor.Value property on all attached CommandExecutors. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.ValueChanged.html">ValueChanged</a></td><td width="50%"> True if the value of the command has been changed </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.ApplicationFramework.Presentation.Command.Visible.html">Visible</a></td><td width="50%"> Gets or sets if the command is visible. Setting this value will set the CommandExecutor.Visible property on all attached CommandExecutors. </td></tr></table>
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<h4 class="dtH4">See Also</h4>
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<p>
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<a href="Aveva.ApplicationFramework.Presentation.Command.html">Command Class</a> | <a href="Aveva.ApplicationFramework.Presentation.html">Aveva.ApplicationFramework.Presentation Namespace</a></p>
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