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## 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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74 lines
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<title>DbElementType Methods</title>
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<td class="runninghead">AVEVA Database .NET Public Interface</td>
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<h1 class="dtH1">DbElementType Methods</h1>
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<p>The methods of the <b>DbElementType</b> class are listed below. For a complete list of <b>DbElementType</b> class members, see the <a href="Aveva.Pdms.Database.DbElementTypeMembers.html">DbElementType Members</a> topic.</p>
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<h4 class="dtH4">Public Static Methods</h4>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><img src="static.gif" /><a href="Aveva.Pdms.Database.DbElementType.GetAllElementTypes.html">GetAllElementTypes</a></td><td width="50%"> List of all element types </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><img src="static.gif" /><a href="Aveva.Pdms.Database.DbElementType.GetElementType_overloads.html">GetElementType</a></td><td width="50%">Overloaded. Creates and returns a new Element Type </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><img src="static.gif" /><a href="Aveva.Pdms.Database.DbElementType.NounFieldType.html">NounFieldType</a></td><td width="50%"> The type of a noun field </td></tr></table>
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<h4 class="dtH4">Public Instance Methods</h4>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.AscendantTypes.html">AscendantTypes</a></td><td width="50%"> Return list of possible ascendant Element types. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.CompareTo.html">CompareTo</a></td><td width="50%"> Compare Element type with a generic object. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.DatabaseTypes.html">DatabaseTypes</a></td><td width="50%"> Return list of database types which can contain Elements of this type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.DescendantTypes.html">DescendantTypes</a></td><td width="50%"> Return list of possible descendant types. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.Equals.html">Equals</a></td><td width="50%"> Test for equality with a generic object. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.GetAllUdas.html">GetAllUdas</a></td><td width="50%"> </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.GetAsString_overloads.html">GetAsString</a></td><td width="50%">Overloaded. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.GetAsStringArray_overloads.html">GetAsStringArray</a></td><td width="50%">Overloaded. Gets the value of any field as an array of strings; note this may be of length 0 </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.GetBool.html">GetBool</a></td><td width="50%"> Get boolean metadata for Element type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.GetElementTypeArray.html">GetElementTypeArray</a></td><td width="50%"> Get array of Element types metadata for Element type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.GetHashCode.html">GetHashCode</a></td><td width="50%"> Get unique integer identifier for Element type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.GetInteger.html">GetInteger</a></td><td width="50%"> Get integer metadata for Element type </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.GetIntegerArray.html">GetIntegerArray</a></td><td width="50%"> Get integer array metadata for the given noun field. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.GetString.html">GetString</a></td><td width="50%"> Get string metadata for Element type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="ms-help://MS.NETFrameworkSDKv1.1/cpref/html/frlrfSystemObjectClassGetTypeTopic.htm">GetType</a> (inherited from <b>Object</b>)</td><td width="50%">
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Gets the <a href="ms-help://MS.NETFrameworkSDKv1.1/cpref/html/frlrfSystemTypeClassTopic.htm">Type</a> of the current instance.
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</td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.getUDAs.html">getUDAs</a></td><td width="50%"> </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.IsAttributeValid.html">IsAttributeValid</a></td><td width="50%"> Check whether a given attribute is valid for this Element type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.MemberTypes.html">MemberTypes</a></td><td width="50%"> Return list of allowed member types for Elements of this type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.OwnerTypes.html">OwnerTypes</a></td><td width="50%"> Return list of allowed owner types for Elements of this type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.PassObjectToCPP.html">PassObjectToCPP</a></td><td width="50%"> Pass object through to unmanaged C++. AVEVA USE ONLY. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.ReferenceTypes.html">ReferenceTypes</a></td><td width="50%"> Return list of allowed reference types for Attribute, given this Element type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.SystemAttributes.html">SystemAttributes</a></td><td width="50%"> Return system attributes and UDAs on this Element type. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="ms-help://MS.NETFrameworkSDKv1.1/cpref/html/frlrfSystemObjectClassToStringTopic.htm">ToString</a> (inherited from <b>Object</b>)</td><td width="50%">
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Returns a <a href="ms-help://MS.NETFrameworkSDKv1.1/cpref/html/frlrfSystemStringClassTopic.htm">String</a> that represents the current <a href="ms-help://MS.NETFrameworkSDKv1.1/cpref/html/frlrfSystemObjectClassTopic.htm">Object</a>.
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</td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbElementType.VisibleSystemAttributes.html">VisibleSystemAttributes</a></td><td width="50%"> </td></tr></table>
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</div>
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<h4 class="dtH4">See Also</h4>
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<p>
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<a href="Aveva.Pdms.Database.DbElementType.html">DbElementType Class</a> | <a href="Aveva.Pdms.Database.html">Aveva.Pdms.Database Namespace</a></p>
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