語言

StateBag.Remove(String) 方法

定義

命名空間:
System.Web.UI
組件:
System.Web.dll

移除物件中指定的鍵值對 StateBag 。

public:
 void Remove(System::String ^ key);
public void Remove(string key);
member this.Remove : string -> unit
Public Sub Remove (key As String)

參數

key
String

要移除的物品。

範例

以下程式碼範例示範使用此 Remove 方法。

void MovePiece(string fromPosition, string toPosition) {
   StateBag bag = ViewState;
   object piece = bag[fromPosition];
   if (piece != null) {
      bag.Remove(fromPosition);
      bag.Add(toPosition, piece);
      RenderBoard();
   }
   else {
      throw new InvalidPositionException("There is no game piece at the \"from\" position."); 
   }
}

Sub MovePiece(fromPosition As String, toPosition As String)
   Dim bag As StateBag = ViewState
   Dim piece As Object = bag(fromPosition)
   If Not (piece Is Nothing) Then
      bag.Remove(fromPosition)
      bag.Add(toPosition, piece)
      RenderBoard()
   Else
      Throw New InvalidPositionException("There is no game piece at the ""from"" position.")
   End If
End Sub 'MovePiece

適用於

另請參閱