TextBoxBase::SelectedText Property

 

Gets or sets a value indicating the currently selected text in the control.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public:
[BrowsableAttribute(false)]
property String^ SelectedText {
	virtual String^ get();
	virtual void set(String^ value);
}

Property Value

Type: System::String^

A string that represents the currently selected text in the text box.

You can assign text to this property to change the text currently selected in the text box. If no text is currently selected in the text box, this property returns a zero-length string.

The following code example uses TextBox, a derived class. It provides Click event handlers for MenuItem objects that perform Cut, Copy, Paste, and Undo operations. This example requires that a TextBox control named textBox1 has been created.

private:
   void Menu_Copy( System::Object^ sender, System::EventArgs^ e )
   {
      // Ensure that text is selected in the text box.   
      if ( textBox1->SelectionLength > 0 )
         // Copy the selected text to the Clipboard.
         textBox1->Copy();
   }

   void Menu_Cut( System::Object^ sender, System::EventArgs^ e )
   {
      // Ensure that text is currently selected in the text box.   
      if ( !textBox1->SelectedText->Equals( "" ) )
      {
         // Cut the selected text in the control and paste it into the Clipboard.
         textBox1->Cut();
      }
   }

   void Menu_Paste( System::Object^ sender, System::EventArgs^ e )
   {
      // Determine if there is any text in the Clipboard to paste into the text box.
      if ( Clipboard::GetDataObject()->GetDataPresent( DataFormats::Text ) == true )
      {
         // Determine if any text is selected in the text box.
         if ( textBox1->SelectionLength > 0 )
         {
            // Ask user if they want to paste over currently selected text.
            if ( MessageBox::Show( "Do you want to paste over current selection?",
               "Cut Example", MessageBoxButtons::YesNo ) == ::DialogResult::No )
            {
               // Move selection to the point after the current selection and paste.
               textBox1->SelectionStart = textBox1->SelectionStart + textBox1->SelectionLength;
            }
         }
         // Paste current text in Clipboard into text box.
         textBox1->Paste();
      }
   }

   void Menu_Undo( System::Object^ sender, System::EventArgs^ e )
   {
      // Determine if last operation can be undone in text box.   
      if ( textBox1->CanUndo == true )
      {
         // Undo the last operation.
         textBox1->Undo();
         // Clear the undo buffer to prevent last action from being redone.
         textBox1->ClearUndo();
      }
   }

.NET Framework
Available since 1.1
Return to top
Show: