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CoreDb.Create 方法 (String, RddFieldInfo, Type, Boolean, String, String, Boolean, Boolean)

X#
Create new file through the specified RDDs

命名空间:  XSharp
程序集:  XSharp.Core (在 XSharp.Core.dll 中) 版本:2.22 GA
语法
 STATIC METHOD Create(
	cName AS STRING,
	aStruct AS RddFieldInfo[],
	rddType AS Type,
	lNew AS LOGIC,
	cAlias AS STRING,
	cDelim AS STRING,
	lKeep AS LOGIC,
	lJustOpen AS LOGIC
) AS LOGIC
查看代码

参数

cName
类型:String
Name of the file to create. When no extension is specified then the default extension for the RDD will be used.
aStruct
类型:RddFieldInfo
Structure to use when creating the file.
rddType
类型:Type
Type of the class that must be used to work with the RDD.
lNew
类型:Boolean
TRUE opens the database file in a new work area (first available). FALSE opens it in the current work area. lNew is useful only when lOpen has a value of TRUE. The default is FALSE.
cAlias
类型:String
The alias to be associated with the work area where the file is opened. Within a single thread, X# will not accept duplicate aliases. cAlias is useful only when lOpen has a value of TRUE. The default alias is the filename without extension
cDelim
类型:String
The delimiter for fields within a delimited database file. The default is a NULL string
lKeep
类型:Boolean
TRUE specifies that the file should remain open after creating. FALSE closes the file.
lJustOpen
类型:Boolean
TRUE specifies that an existing database file be opened. FALSE specifies that that a new database file be opened. The default is FALSE. This can be used to open existing SDF and delimited files, which do not have a structure in the header ? in which case, an empty aStruct should be used.

返回值

类型:Boolean
TRUE when succesfull, otherwise FALSE. When an error has occurred then you can retrieve that error from RuntimeState.LastRddError.
参见