| 1. | Some html tags have no closing tag , such as the
这一操作无效。有些html标记（如 |
| 2. | The requested operation is not valid
所请求的操作无效。 |
| 3. | This setting has no effect on copy or cut when a line is not blank
此设置对行非空时的复制或剪切操作无效。 |
| 4. | The operation is not valid
该操作无效。 |
| 5. | To its state before the merge and nullifying all previous merge operations
还原到合并之前的状态，并使以前的所有合并操作无效。 |
| 6. | Gets the cursor that indicates that a particular region is invalid for the current operation
获取指示某个特定区域对当前操作无效的光标。 |
| 7. | With the specified name to its state before the merge and nullifying all previous merge operations
还原到合并之前的状态，并使以前的所有合并操作无效。 |
| 8. | Class represents a read - only collection , adding items to the collection is an invalid operation
类表示一个只读集合，所以向该集合中添加项目的操作无效。 |
| 9. | Class represents a read - only collection , clearing items from the collection is an invalid operation
类表示一个只读集合，所以从该集合中清除项的操作无效。 |
| 10. | Class represents a read - only collection , removing items from the collection is an invalid operation
类表示一个只读集合，所以从该集合中移除项的操作无效。 |
