以編程方式生成的查找字段導致“System.ArgumentException：Value不在預期范圍內”創建新項目時

Question

我創建了一個內容類型TypeA，它具有基本ListB的查找字段。 然后我創建一個使用TypeA的ListA。 一切都是以編程方式創建的。

當ListA的“添加新項目”模式應該加載時拋出異常。 它只發生在ListB中有項目的情況下。 如果ListB為空，則listA的'添加新項'模態加載，並且ListB的查找字段正確顯示(None)

堆棧跟蹤：

System.ArgumentException: Value does not fall within the expected range.

at Microsoft.SharePoint.SPFieldMap.GetColumnNumber(String strFieldName, Boolean bThrow)
at Microsoft.SharePoint.SPListItemCollection.GetColumnNumber(String groupName, Boolean bThrowException)
at Microsoft.SharePoint.SPListItemCollection.GetRawValue(String fieldname, Int32 iIndex, Boolean bThrow)
at Microsoft.SharePoint.SPListItem.GetValue(SPField fld, Int32 columnNumber, Boolean bRaw, Boolean bThrowException)
at Microsoft.SharePoint.SPListItem.GetValue(String strName, Boolean bThrowException)
at Microsoft.SharePoint.SPListItem.get_Item(String fieldName)
at Microsoft.SharePoint.WebControls.LookupField.get_DataSource()
at Microsoft.SharePoint.WebControls.LookupField.CreateChildControls()
at System.Web.UI.Control.EnsureChildControls()
at Microsoft.SharePoint.WebControls.BaseFieldControl.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

我用來創建內容類型，列表和查找字段的方法：

    private SPContentType createContentType(SPSite site, string typeName, string groupName, string parentTypeName, string[] fields) {
        try {
            SPContentType testExist = site.RootWeb.ContentTypes[typeName];
            if (testExist != null)
                return testExist;
        }
        catch { }

        SPContentType parentType = site.RootWeb.ContentTypes[parentTypeName];

        SPContentType contentType = new SPContentType(parentType, site.RootWeb.ContentTypes, typeName);
        contentType.Group = groupName;

        foreach (string field in fields) {
            contentType.FieldLinks.Add(new SPFieldLink(site.RootWeb.GetField(field)));
        }
        contentType.FieldLinks["Title"].Required = false;
        contentType.FieldLinks["Title"].Hidden = true;

        site.RootWeb.ContentTypes.Add(contentType);
        contentType.Update();
        return contentType;
    }

    public SPFieldLookup createLookupField(string fieldName, string groupName, Guid listGuid, string lookupField, bool allowMultipleValues, bool isRequired) {
        if (site.RootWeb.Fields.ContainsField(fieldName))
            return null;
        string internalName = site.RootWeb.Fields.AddLookup(fieldName, listGuid, isRequired);
        SPFieldLookup lookup = site.RootWeb.Fields.GetFieldByInternalName(internalName) as SPFieldLookup;
        lookup.AllowMultipleValues = allowMultipleValues;
        lookup.LookupField = lookupField;
        lookup.Group = groupName;
        lookup.Update();
        return lookup;
    }

    public SPList createList(string listName, string description, SPContentType contentType) {

        if (web.Lists.TryGetList(listName) != null)
            web.Lists[listName].Delete();
        Guid newListGuid = web.Lists.Add(listName, description, SPListTemplateType.GenericList);
        SPList newList = web.Lists[newListGuid];
        newList.OnQuickLaunch = true;
        newList.Update();

        newList.ContentTypesEnabled = true;
        SPContentType newType = newList.ContentTypes.Add(contentType);
        newList.Update();
        newList.ContentTypes["Item"].Delete();
        newList.Update();
        newList.Fields["Title"].Required = false;
        newList.Fields["Title"].Hidden = true;
        newList.Fields["Title"].Update();

        SPView view = newList.DefaultView;
        foreach (SPField field in newType.Fields) {
            view.ViewFields.Add(field);
        }
        view.ViewFields.Delete("Title");
        view.ViewFields.Delete("LinkTitle");
        view.ViewFields.Delete("ContentType");
        view.Update();

        return newList;
    }

例

SPContentType typeB = createContentType(site, "Type B", "My Group", "Item", new string[] {"Salary"});
SPList listB = createList("List B", "my list b", typeB);
SPFieldLookup lookupB = createLookupField("B", "My Group", listB.ID, "Salary", false, false);
SPContentType typeA = createContentType(site, "Type A", "My Group", "Item", new string[] {"Name", "B"});
SPList listA = createList("List A", "my list a", typeA);

Answer 1

SPFieldLookup.LookupField屬性需要字段的內部名稱。

解決方案是進行以下更改（在示例中）：

SPFieldLookup lookupB = createLookupField("B", "My Group", listB.ID, listB.Fields["Salary"].InternalName, false, false);