DbDataSource 类 |  |
This class implements an IBindingList on a workarea
继承层次Object
DbDataSource
DbDataSource
命名空间： XSharp
程序集： XSharp.Data (在 XSharp.Data.dll 中) 版本：2.22 GA
语法DbDataSource 类型公开以下成员。
构造函数| 名称 | 说明 | |
|---|---|---|
 | DbDataSource | 初始化 DbDataSource 类的一个新实例 |
属性| 名称 | 说明 | |
|---|---|---|
 | AllowEdit | TRUE when the workarea is not readonly |
| AllowNew | TRUE when the workarea is not readonly |
| AllowRemove | TRUE when the workarea is not readonly |
| Count | Returns the # of records in the RDD |
| EoF | Is underlying workarea at EOF |
| FullName | File name of underlying workarea |
| IsFixedSize | Gets a value indicating whether the IList has a fixed size. |
| IsReadOnly | TRUE when the workarea is readonly |
| IsSorted | Gets whether the items in the list are sorted. |
| Item | Retrieve the DbRecordObject for the record at the given position |
| Name | Alias of underlying workarea |
| RecNo | Recordnumber in underlying workarea |
| ShowDeleted | Should the Deleted Flag be included as "virtual column" |
| ShowRecno | Should the Record number be included as "virtual column" |
| SortDirection | Gets the direction of the sort. |
| SortProperty | Gets the PropertyDescriptor that is being used for sorting. |
| SupportsChangeNotification | Gets whether a ListChanged event is raised when the list changes or an item in the list changes. |
| SupportsSearching | Gets whether the list supports searching using the Find(PropertyDescriptor, Object) method. |
| SupportsSorting | Gets whether the list supports sorting. |
方法| 名称 | 说明 | |
|---|---|---|
| Add | This required method has not been implemented. |
| AddIndex | Adds the PropertyDescriptor to the indexes used for searching. |
| AddNew | Adds a new item to the list. |
| ApplySort | Sorts the list based on a PropertyDescriptor and a ListSortDirection. |
| Clear | Removes all items from the IList. |
| Contains | Determines whether the IList contains a specific value. |
| CopyTo | This required method has not (yet) been implemented |
| Find | This required method has not (yet) been implemented |
| GetEnumerator | Returns an enumerator with which you can walk the RDD. |
| IndexOf | Determines the index of a specific item in the IList. |
| Insert | This required method has not been implemented. |
| Remove | Removes the first occurrence of a specific object from the IList. |
| RemoveAt | Removes the IList item at the specified index. |
| RemoveIndex | This required method has not (yet) been implemented |
| RemoveSort | Removes any sort applied using ApplySort(PropertyDescriptor, ListSortDirection). |
事件| 名称 | 说明 | |
|---|---|---|
 | ListChanged | Occurs when the list changes or an item in the list changes. |
备注
The class can be used TO directly bind a workarea to a data aware .Net control, such as a DataGridView
Each row in the List represents a record in the workarea. Records are represented by DbRecord objects
Each record
参见