Transferring Rows from one table to another in ang

问题:

I have implemented simple table in angular 2 using angular material...I have taken two mat-table where the selected rows from first table are transferred to second table on clicking Move To Table 2 and vice versa on clicking Move To Table 1

But as I select and Click on Move To Table 2 , the row from my first table is getting spliced and transferred but as do the same for the second row, I am getting the previously transferred row again in my second table.

Sample Example

Below shown is my output.

Initially when I transfer first row , its getting spliced and moved to second table .

But when I transfer second row ,the previously moved row is again added in the second table.

回答1:

That is because you are not clearing the selection ,

All you need to do is clear the selection once the transfer from one table to another is finished

Add this.selection.clear(); this at the end of moveToTableTwo() , like :

moveToTableTwo(){
   ...
   this.selection.clear();
}