{thrownewArgumentException("fieldName","The field name cannot be null or empty."); } Type t = target.GetType(); FieldInfo fi =null;while(t !=null) { fi = t.GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic);if(fi !=null)break; t = t.BaseType; }if(fi ==null) ...
Namespace:Microsoft.SharePoint.Linq Assembly:Microsoft.SharePoint.Linq (in Microsoft.SharePoint.Linq.dll) See also Reference ResourceStrings class ResourceStrings members Microsoft.SharePoint.Linq namespace
el1007e: property or field 'name' cannot be found on null 这个错误通常发生在使用Spring框架结合Thymeleaf模板引擎时,尝试访问一个null对象的'name'属性。以下是对该问题的详细分析和解决步骤: 1. 确认错误信息来源和上下文 错误信息:EL1007E: Property or field 'name' cannot be found on null 上下文:这个...
when you enter data in a record, you must enter a value in the field or in any control bound to the field, and the value cannot beNull. For example, you might want to be sure that a LastName control has a value for each record. ...
Field Name—Field names cannot contain special characters, such as spaces, hyphens, parentheses, brackets, or characters such as $, %, and #. Avoid using field names that contain words that are typically considered database-reserved keywords, such as CHARACTER or DATE. If you attempt to add ...
and lets you to apply your new format to any other table fields and form controls that would logically inherit it. To apply your changes throughout the database, click the smart tag, and then clickUpdate Format everywhere <Field Name> is used. In this case, Field Name is the name of ...
Constant parameters are fixed parameters and do not need to be reconfigured. For example, lable = friends is used to identify a constant value. Variables You can use variables such as time macros, table name macros, and version macros to mark database source information. The variable syntax ...
In the Field Name column of the designer, enter the name of Long Text field. For example: “Address”, “Notes” or “Comments”. Click the Data Type column next to the field name and choose Long Text from the list. Save your changes. Add to a new table On the Create tab, in...
1 This field cannot be blank. 解决 需要把serializers改成这样 12 name = CharField(required=False, allow_blank=True, allow_null=True)account = CharField(required=False, allow_blank=True, allow_null=True) allow_blank=True 解决This field cannot be blank.allow_null=True 解决This field may no...
(for example, $feature.fieldname). To calculate strings to text or character fields, on the dialog box, the string must use double quotation marks (for example, "string"), or in scripting, the string using double quotation marks must also be enclosed in single quotation marks (for example...