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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>
92 lines
9.8 KiB
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92 lines
9.8 KiB
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<title>DbAttribute Members</title>
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<td class="runninghead">AVEVA Database .NET Public Interface</td>
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<h1 class="dtH1">DbAttribute Members
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<p>
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<a href="Aveva.Pdms.Database.DbAttribute.html">DbAttribute overview</a>
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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.DbAttribute.AttributeFieldType.html">AttributeFieldType</a></td><td width="50%"> The type of an attribute field </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.DbAttribute.GetAllAttributes.html">GetAllAttributes</a></td><td width="50%"> List of all attributes </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.DbAttribute.GetDbAttribute_overloads.html">GetDbAttribute</a></td><td width="50%">Overloaded. Create and return a new Attribute instance. </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.DbAttribute.HashValueToString.html">HashValueToString</a></td><td width="50%"> Convert a hash value to a string </td></tr></table>
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<h4 class="dtH4">Public Static Operators</h4>
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<tr VALIGN="top"><td width="50%"><img src="puboperator.gif"></img><img src="static.gif" /><a href="Aveva.Pdms.Database.DbAttribute.op_Equality.html">Equality Operator</a></td><td width="50%"> Test for equality between a pair of Attributes. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="puboperator.gif"></img><img src="static.gif" /><a href="Aveva.Pdms.Database.DbAttribute.op_Inequality.html">Inequality Operator</a></td><td width="50%"> Test for inequality between a pair of Attributes. </td></tr></table>
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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.Pdms.Database.DbAttribute.Category.html">Category</a></td><td width="50%"> Attribute category used for display </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.Description.html">Description</a></td><td width="50%"> Description of this Attribute </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.HashValue.html">HashValue</a></td><td width="50%"> Hash value for this Attribute </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.Hyperlink.html">Hyperlink</a></td><td width="50%"> True if attribute represents a hyperlink </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.IsArray.html">IsArray</a></td><td width="50%"> True, if this Attribute is an array </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.IsPseudo.html">IsPseudo</a></td><td width="50%"> True, if this Attribute is a pseudo-attribute </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.IsSynonym.html">IsSynonym</a></td><td width="50%"><EFBFBD></td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.IsUDA.html">IsUDA</a></td><td width="50%"> True, if this Attribute is a User-Defined Attribute </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.MaximumSize.html">MaximumSize</a></td><td width="50%"> Maximum size of this Attribute </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.Name.html">Name</a></td><td width="50%"> Name of this Attribute. This is always reinputable as valid syntax to PML </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.QueryText.html">QueryText</a></td><td width="50%"> Query text associated with this Attribute </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.ShortName.html">ShortName</a></td><td width="50%"> Short name for this Attribute </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.Type.html">Type</a></td><td width="50%"> Type of this Attribute </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubproperty.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.Units.html">Units</a></td><td width="50%"> Units of this Attribute </td></tr></table>
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</div>
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<h4 class="dtH4">Public Instance Methods</h4>
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<div class="tablediv">
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<table class="dtTABLE" cellspacing="0">
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.AllowedIntRanges.html">AllowedIntRanges</a></td><td width="50%"> Allowed range(s) for an integer UDA </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.AllowedRanges.html">AllowedRanges</a></td><td width="50%"> Allowed range(s) for a real UDA </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.AllowedValues.html">AllowedValues</a></td><td width="50%"> Allowed values for a text UDA </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.CompareTo.html">CompareTo</a></td><td width="50%"> Compare Attribute with generic object. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.Equals.html">Equals</a></td><td width="50%"> Test equality to Attribute. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.GetAsString_overloads.html">GetAsString</a></td><td width="50%">Overloaded. Get the value of any attribute field as a string; array valued fields will be returned as the elements concatenated together separated by commas </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.GetAsStringArray_overloads.html">GetAsStringArray</a></td><td width="50%">Overloaded. Get the value of any attribute field as an array of strings </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.GetBool.html">GetBool</a></td><td width="50%"> Get boolean value for the given Attribute field. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.GetHashCode.html">GetHashCode</a></td><td width="50%"> Return hash code for mapping Attributes, overriding Object.GetHashCode. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.GetInteger.html">GetInteger</a></td><td width="50%"> Get integer value for the given Attribute field. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.GetIntegerArray.html">GetIntegerArray</a></td><td width="50%"> Get integer array value for the given Attribute field. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.GetString.html">GetString</a></td><td width="50%"> Get text value from given field of Attribute. </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.DbAttribute.NoClaim.html">NoClaim</a></td><td width="50%"> Query whether it is necessary to claim elements of the given type, in order to change this Attribute. </td></tr>
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<tr VALIGN="top"><td width="50%"><img src="pubmethod.gif"></img><a href="Aveva.Pdms.Database.DbAttribute.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.DbAttribute.ToString.html">ToString</a></td><td width="50%"> Gets the textual representation of this Attribute. </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.DbAttribute.html">DbAttribute Class</a> | <a href="Aveva.Pdms.Database.html">Aveva.Pdms.Database Namespace</a></p>
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