Question

我正在创建一个SharePoint功能，并且在FeatureReceiver我正在尝试添加SPWebConfigModification。我一直在关注this博客文章中列出的方法。

以下是我的功能接收器的片段：

public override void FeatureActivated(SPFeatureReceiverProperties properties)
{
    var webApp = (SPWebApplication)properties.Feature.Parent;

    var debugMode = new SPWebConfigModification
                    {
                        Path = "configuration/system.web/customErrors",
                        Name = "mode",
                        Value = "Off",
                        Sequence = 0,
                        Type = SPWebConfigModification.SPWebConfigModificationType.EnsureAttribute,
                        Owner = "MyWebConfigMods"
                    };

    webApp.WebConfigModifications.Add(debugMode); // <------ Error is thrown at this line
    webApp.WebService.ApplyWebConfigModifications();
    webApp.Update();
}

以下是SharePoint ULS查看器中显示的错误的堆栈跟踪：

Feature receiver assembly 'MyCompany.SharePoint, Version=1.0.0.0, Culture=neutral, PublicKeyToken=xxxxxxxxxxxxxx', class 'MyCompany.SharePoint.Features.WebConfig.WebConfigFeatureReceiver', method 'FeatureActivated' for feature '3a07b91c-0968-4f14-b2bc-ae0e3f109cf9' threw an exception: System.Xml.XPath.XPathException: '' is an invalid expression.    
at MS.Internal.Xml.XPath.XPathScanner..ctor(String xpathExpr)    
at MS.Internal.Xml.XPath.XPathParser.ParseXPathExpresion(String xpathExpresion)    
at MS.Internal.Xml.XPath.QueryBuilder.Build(String query, Boolean allowVar, Boolean allowKey)    
at System.Xml.XPath.XPathExpression.Compile(String xpath, IXmlNamespaceResolver nsResolver)    
at System.Xml.XPath.XPathNavigator.Select(String xpath)    
at System.Xml.XmlNode.SelectSingleNode(String xpath)    
at Microsoft.SharePoint.Administration.SPWebConfigFileChanges.ApplyModificationsWebConfigXmlDocument(XmlDocument xdWebConfig, String filepath)    
at Microsoft.SharePoint.Administration.SPWebApplication.ApplyWebConfigModifications()    
at Microsoft.SharePoint.Administration.SPWebService.ApplyWebConfigModifications()    
at MyCompany.SharePoint.WebConfigModificationFeatureReceiver.FeatureActivated(SPFeatureReceiverProperties properties)    
at Microsoft.SharePoint.SPFeature.DoActivationCallout(Boolean fActivate, Boolean fForce)

在更新期间的某个地方，XPath表达式中引用了一个空路径。这不是我的功能。有什么想法吗？

Answer 1

customErrors没有名为debug的属性，您必须引用编译元素

Answer 2

这是我们使用的代码：

                SPWebApplication wappCurrent = (SPWebApplication)properties.Feature.Parent;
                SPWebConfigModification modAuthorizedType = new SPWebConfigModification();
                modAuthorizedType.Name = "authorizedType[@Assembly='Infowise.AssociatedTasks, Version=1.0.0.0, Culture=neutral, PublicKeyToken=23853b1f8d5855a5']";
                modAuthorizedType.Owner = "Infowise.Actions";
                modAuthorizedType.Path = "configuration/System.Workflow.ComponentModel.WorkflowCompiler/authorizedTypes";
                modAuthorizedType.Type = SPWebConfigModification.SPWebConfigModificationType.EnsureChildNode;
                modAuthorizedType.Value = @"<authorizedType Assembly=""Infowise.AssociatedTasks, Version=1.0.0.0, Culture=neutral, PublicKeyToken=23853b1f8d5855a5"" Namespace=""Infowise.Sharepoint.V3.Fields.Workflow"" TypeName=""*"" Authorized=""True"" />";
                wappCurrent.WebConfigModifications.Add(modAuthorizedType);
                wappCurrent.Update();
                wappCurrent.Farm.Services.GetValue<SPWebService>().ApplyWebConfigModifications();

希望有帮助

Answer 3

就我而言，wappCurrent.WebConfigModifications有一些旧值，其Path属性无效。清除阵列解决了问题。

SharePoint 2010 - 尝试使用SPWebConfigModification时收到错误

3 个答案: