修改 MOSS Web 部件时出错

Question

每当我尝试在 sharepoint 2007 中编辑自定义 Web 部件的共享属性时，都会收到以下错误：

Exception has been thrown by the target of an invocation.
  at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
  at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
  at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
  at Microsoft.SharePoint.WebPartPages.ExtendedPropertyInfo.GetValue(Object target, Object[] indexValues)
  at Microsoft.SharePoint.WebPartPages.PropertySheetProperty.get_Value()
  at Microsoft.SharePoint.WebPartPages.PropertySheetProperty.get_IsNull()
  at Microsoft.SharePoint.WebPartPages.PropertySheetProperty..ctor(WebPart targetWebPart, SPWebPartManager webPartManager, PropertyInfo pi)
  at Microsoft.SharePoint.WebPartPages.PropertySheetProperties.GetProperties(WebPart targetWebPart, SPWebPartManager manager, Boolean inPersonalizationMode, IPropertySheetPropertiesFilter filter)
  at Microsoft.SharePoint.WebPartPages.CustomPropertyToolPart.CreatePropertyGrid()
  at Microsoft.SharePoint.WebPartPages.CustomPropertyToolPart.CreateChildControls()
  at System.Web.UI.Control.EnsureChildControls()
  at System.Web.UI.Control.PreRenderRecursiveInternal()
  at System.Web.UI.Control.PreRenderRecursiveInternal()
  at System.Web.UI.Control.PreRenderRecursiveInternal()
  at System.Web.UI.Control.PreRenderRecursiveInternal()
  at System.Web.UI.Control.PreRenderRecursiveInternal()
  at System.Web.UI.Control.PreRenderRecursiveInternal()
  at System.Web.UI.Control.PreRenderRecursiveInternal()
  at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

我的 Web 部件中确实有一些自定义属性，它们为表单生成的通知电子邮件设置电子邮件地址。例如：

    [WebBrowsable(true),
    Personalizable(true),
    DefaultValue("[email protected]"),
    Category("Email Properties"),
    Microsoft.SharePoint.WebPartPages.WebPartStorage(Microsoft.SharePoint.WebPartPages.Storage.Shared),
    Microsoft.SharePoint.WebPartPages.FriendlyName("Email Addresses (separate multiple emails with a comma):"),
    Description("Please enter the email addresses for those that should be notified when an incident takes place at a Corporate location.")]
    public string CorpMessageEmailAddresses { get; set; }

但是，即使注释掉了这些属性，我在尝试修改 Web 部件时仍然会收到错误。

还有其他人处理过这样的问题吗？如果需要，我可以提供更多信息或代码片段。

Answer 1

好吧，我昨晚很晚才发现这一点……这是隐藏在异常中的典型 MS 异常。显示的异常不是原因，而是最后发生的异常。真正的例外是与我的 ViewState 变量有关的问题。我在 get & 周围放了一个 try/catch 。设置好，现在一切正常！

直到今天早上我才看到你的评论，kbrimington...感谢你的帮助！