关于AllOriginSubtypes和AllDestinationSubtypes拓扑检查官方文档有误导

本文主要是介绍关于AllOriginSubtypes和AllDestinationSubtypes拓扑检查官方文档有误导，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

目录

1.问题描述：

2.有问题的代码：

3.修改能正确执行的代码 ：

---

1.问题描述：

当两个要素类参与拓扑时，官方有一段代码，将拓扑规则加到拓扑中

ITopologyRule.AllOriginSubtypes Property

        Indicates if all origin subtypes are specified for the topology rule.

ITopologyRule.AllDestinationSubtypes Property

        Indicates if all destination subtypes are specified for the topology rule.

默认为false，但是这样是得不到拓扑结果的。

2.有问题的代码：

public void AddRuleToTopology(ITopology topology, esriTopologyRuleType ruleType,String ruleName, IFeatureClass originClass, int originSubtype, IFeatureClassdestinationClass, int destinationSubtype)
{// Create a topology rule.ITopologyRule topologyRule = new TopologyRuleClass();topologyRule.TopologyRuleType = ruleType;topologyRule.Name = ruleName;topologyRule.OriginClassID = originClass.FeatureClassID;topologyRule.AllOriginSubtypes = false;topologyRule.OriginSubtype = originSubtype;topologyRule.DestinationClassID = destinationClass.FeatureClassID;topologyRule.AllDestinationSubtypes = false;topologyRule.DestinationSubtype = destinationSubtype;// Cast the topology to the ITopologyRuleContainer interface and add the rule.ITopologyRuleContainer topologyRuleContainer = (ITopologyRuleContainer)topology;if (topologyRuleContainer.get_CanAddRule(topologyRule)){topologyRuleContainer.AddRule(topologyRule);}else{throw new ArgumentException("Could not add specified rule to the topology.");}

3.修改能正确执行的代码 ：

 public void AddRuleToTopology(ITopology topology, esriTopologyRuleType ruleType, String ruleName, IFeatureClass originClass, int originSubtype, IFeatureClass destinationClass, int destinationSubtype){// Create a topology rule.ITopologyRule topologyRule = new TopologyRuleClass();topologyRule.TopologyRuleType = ruleType;topologyRule.Name = ruleName;topologyRule.OriginClassID = originClass.FeatureClassID;topologyRule.AllOriginSubtypes = true;// topologyRule.OriginSubtype = originSubtype;topologyRule.DestinationClassID = destinationClass.FeatureClassID;topologyRule.AllDestinationSubtypes = true;//topologyRule.DestinationSubtype = destinationSubtype;// Cast the topology to the ITopologyRuleContainer interface and add the rule.ITopologyRuleContainer topologyRuleContainer = (ITopologyRuleContainer)topology;if (topologyRuleContainer.get_CanAddRule(topologyRule)){topologyRuleContainer.AddRule(topologyRule);}else{throw new ArgumentException("无法将指定的规则添加到拓扑中 .");}}

这篇关于关于AllOriginSubtypes和AllDestinationSubtypes拓扑检查官方文档有误导的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！

---