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C# XmlElementWithLocation.HasAttribute方法代码示例

本文整理汇总了C#中Microsoft.Build.Construction.XmlElementWithLocation.HasAttribute方法的典型用法代码示例。如果您正苦于以下问题:C# XmlElementWithLocation.HasAttribute方法的具体用法?C# XmlElementWithLocation.HasAttribute怎么用?C# XmlElementWithLocation.HasAttribute使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Microsoft.Build.Construction.XmlElementWithLocation的用法示例。


在下文中一共展示了XmlElementWithLocation.HasAttribute方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: ParseProjectItemElement

        /// <summary>
        /// Parse a ProjectItemElement
        /// </summary>
        private ProjectItemElement ParseProjectItemElement(XmlElementWithLocation element, ProjectItemGroupElement parent)
        {
            ProjectXmlUtilities.VerifyThrowProjectAttributes(element, s_validAttributesOnItem);

            bool belowTarget = parent.Parent is ProjectTargetElement;

            string itemType = element.Name;
            string include = element.GetAttribute(XMakeAttributes.include);
            string exclude = element.GetAttribute(XMakeAttributes.exclude);
            string remove = element.GetAttribute(XMakeAttributes.remove);
            string update = element.GetAttribute(XMakeAttributes.update);

            var exclusiveItemOperation = "";
            int exclusiveAttributeCount = 0;
            if (element.HasAttribute(XMakeAttributes.include))
            {
                exclusiveAttributeCount++;
                exclusiveItemOperation = XMakeAttributes.include;
            }
            if (element.HasAttribute(XMakeAttributes.remove))
            {
                exclusiveAttributeCount++;
                exclusiveItemOperation = XMakeAttributes.remove;
            }
            if (element.HasAttribute(XMakeAttributes.update))
            {
                exclusiveAttributeCount++;
                exclusiveItemOperation = XMakeAttributes.update;
            }

            //  At most one of the include, remove, or update attributes may be specified
            if (exclusiveAttributeCount > 1)
            {
                XmlAttributeWithLocation errorAttribute = remove.Length > 0 ? (XmlAttributeWithLocation)element.Attributes[XMakeAttributes.remove] : (XmlAttributeWithLocation)element.Attributes[XMakeAttributes.update];
                ProjectErrorUtilities.ThrowInvalidProject(errorAttribute.Location, "InvalidAttributeExclusive");
            }

            // Include, remove, or update must be present unless inside a target
            ProjectErrorUtilities.VerifyThrowInvalidProject(exclusiveAttributeCount == 1 || belowTarget, element.Location, "MissingRequiredAttribute", exclusiveItemOperation, itemType);

            // Exclude must be missing, unless Include exists
            ProjectXmlUtilities.VerifyThrowProjectInvalidAttribute(exclude.Length == 0 || include.Length > 0, (XmlAttributeWithLocation)element.Attributes[XMakeAttributes.exclude]);

            // If we have an Include attribute at all, it must have non-zero length
            ProjectErrorUtilities.VerifyThrowInvalidProject(include.Length > 0 || element.Attributes[XMakeAttributes.include] == null, element.Location, "MissingRequiredAttribute", XMakeAttributes.include, itemType);

            // If we have a Remove attribute at all, it must have non-zero length
            ProjectErrorUtilities.VerifyThrowInvalidProject(remove.Length > 0 || element.Attributes[XMakeAttributes.remove] == null, element.Location, "MissingRequiredAttribute", XMakeAttributes.remove, itemType);

            // If we have an Update attribute at all, it must have non-zero length
            ProjectErrorUtilities.VerifyThrowInvalidProject(update.Length > 0 || element.Attributes[XMakeAttributes.update] == null, element.Location, "MissingRequiredAttribute", XMakeAttributes.update, itemType);

            XmlUtilities.VerifyThrowProjectValidElementName(element);
            ProjectErrorUtilities.VerifyThrowInvalidProject(XMakeElements.IllegalItemPropertyNames[itemType] == null, element.Location, "CannotModifyReservedItem", itemType);

            ProjectItemElement item = new ProjectItemElement(element, parent, _project);

            foreach (XmlElementWithLocation childElement in ProjectXmlUtilities.GetVerifyThrowProjectChildElements(element))
            {
                ProjectMetadataElement metadatum = ParseProjectMetadataElement(childElement, item);

                item.AppendParentedChildNoChecks(metadatum);
            }

            return item;
        }
开发者ID:nikson,项目名称:msbuild,代码行数:69,代码来源:ProjectParser.cs


注:本文中的Microsoft.Build.Construction.XmlElementWithLocation.HasAttribute方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。