Clipboard.GetDataObject 方法

public:
 static System::Windows::Forms::IDataObject ^ GetDataObject();

public static System.Windows.Forms.IDataObject GetDataObject();

public static System.Windows.Forms.IDataObject? GetDataObject();

static member GetDataObject : unit -> System.Windows.Forms.IDataObject

Public Shared Function GetDataObject () As IDataObject

傳回

代表 IDataObject 剪貼簿上目前的資料，或 null 是夾板上沒有資料。

例外狀況

範例

以下程式碼範例使用 Clipboard 方法將資料放入系統剪貼簿並取得資料。 此代碼假設 button1、 button2、 textBox1、 textBox2 已放置在表單上。

此 button1_Click 方法呼叫 SetDataObject 從文字框中選取的文字，並將其放置到系統的剪貼簿中。

此 button2_Click 方法呼叫 GetDataObject 從系統剪貼簿擷取資料。 程式碼使用 IDataObject 和 DataFormats 來擷取回傳的資料。 資料以 textBox2。

private:
   void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      // Takes the selected text from a text box and puts it on the clipboard.
      if ( !textBox1->SelectedText->Equals( "" ) )
      {
         Clipboard::SetDataObject( textBox1->SelectedText );
      }
      else
      {
         textBox2->Text = "No text selected in textBox1";
      }
   }

   void button2_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      // Declares an IDataObject to hold the data returned from the clipboard.
      // Retrieves the data from the clipboard.
      IDataObject^ iData = Clipboard::GetDataObject();
      
      // Determines whether the data is in a format you can use.
      if ( iData->GetDataPresent( DataFormats::Text ) )
      {
         // Yes it is, so display it in a text box.
         textBox2->Text = (String^)(iData->GetData( DataFormats::Text ));
      }
      else
      {
         // No it is not.
         textBox2->Text = "Could not retrieve data off the clipboard.";
      }
   }

private void button1_Click(object sender, System.EventArgs e) {
    // Takes the selected text from a text box and puts it on the clipboard.
    if(textBox1.SelectedText != "")
       Clipboard.SetDataObject(textBox1.SelectedText);
    else
       textBox2.Text = "No text selected in textBox1";
 }
 
 private void button2_Click(object sender, System.EventArgs e) {
    // Declares an IDataObject to hold the data returned from the clipboard.
    // Retrieves the data from the clipboard.
    IDataObject iData = Clipboard.GetDataObject();
 
    // Determines whether the data is in a format you can use.
    if(iData.GetDataPresent(DataFormats.Text)) {
       // Yes it is, so display it in a text box.
       textBox2.Text = (String)iData.GetData(DataFormats.Text); 
    }
    else {
       // No it is not.
       textBox2.Text = "Could not retrieve data off the clipboard.";
    }
 }

Private Sub button1_Click(sender As Object, e As System.EventArgs)
    ' Takes the selected text from a text box and puts it on the clipboard.
    If textBox1.SelectedText <> "" Then
        Clipboard.SetDataObject(textBox1.SelectedText)
    Else
        textBox2.Text = "No text selected in textBox1"
    End If
End Sub
 
Private Sub button2_Click(sender As Object, e As System.EventArgs)
    ' Declares an IDataObject to hold the data returned from the clipboard.
    ' Retrieves the data from the clipboard.
    Dim iData As IDataObject = Clipboard.GetDataObject()
    
    ' Determines whether the data is in a format you can use.
    If iData.GetDataPresent(DataFormats.Text) Then
        ' Yes it is, so display it in a text box.
        textBox2.Text = CType(iData.GetData(DataFormats.Text), String)
    Else
        ' No it is not.
        textBox2.Text = "Could not retrieve data off the clipboard."
    End If
End Sub

備註

由於從剪貼簿回傳的物件資料型態可能不同，此方法會以 IDataObject. 接著你可以利用介面的方法 IDataObject ，以正確的資料型別擷取資料。

此方法嘗試以100毫秒為間隔取得十次資料，若所有嘗試皆未成功則拋出 。ExternalException

另請參閱

• DataObject
• DataFormats
• SetDataObject(Object)
• IDataObject