ToolBarButton::Tag Property


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Gets or sets the object that contains data about the toolbar button.

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

property Object^ Tag {
	Object^ get();
	void set(Object^ value);

Property Value

Type: System::Object^

An Object that contains data about the toolbar button. The default is null.

Retrieves or assigns the data currently associated with the toolbar button. Any Object derived type can be assigned to this property. If this property is being set through the Windows Forms designer, only text can be assigned.

The following code example demonstrates how to use the Pushed, PartialPush, and Tag properties. To run the example, paste the following code in a form containing a RichTextBox control called RichTextBox1. Call the InitializeToolBar method in the form's constructor or Load method.

   // Declare ToolBar1.
   System::Windows::Forms::ToolBar^ ToolBar1;


   // Initialize ToolBar1 with Bold(B), Italic(I), and 
   // Underline(U) buttons.
   void InitializeToolBar()
      ToolBar1 = gcnew ToolBar;

      // Set the appearance to Flat.
      ToolBar1->Appearance = ToolBarAppearance::Flat;

      // Set the toolbar to dock at the bottom of the form.
      ToolBar1->Dock = DockStyle::Bottom;

      // Set the toolbar font to 14 points and bold.
      ToolBar1->Font = gcnew System::Drawing::Font( FontFamily::GenericSansSerif,14,FontStyle::Bold );

      // Declare fontstyle array with the three font styles.
      array<FontStyle>^ fonts = {FontStyle::Bold,FontStyle::Italic,FontStyle::Underline};
      int count;

      // Create a button for each value in the array, setting its 
      // text to the first letter of the style and its 
      // button's tag property.
      for ( count = 0; count < fonts->Length; count++ )
         ToolBarButton^ fontButton = gcnew ToolBarButton( fonts[ count ].ToString()->Substring( 0, 1 ) );
         fontButton->Style = ToolBarButtonStyle::ToggleButton;
         fontButton->Tag = fonts[ count ];
         ToolBar1->Buttons->Add( fontButton );

      this->ToolBar1->ButtonClick += gcnew ToolBarButtonClickEventHandler( this, &Form1::ToolBar1_ButtonClick );
      this->Controls->Add( this->ToolBar1 );

   // Declare FontStyle object, which defaults to the Regular
   // FontStyle.
   FontStyle style;
   void ToolBar1_ButtonClick( Object^ /*sender*/, System::Windows::Forms::ToolBarButtonClickEventArgs^ e )
      // If a button is pushed, use a bitwise Or combination 
      // of the style variable and the button tag, to set style to 
      // the correct FontStyle. Set the button's PartialPush 
      // property to true for a Windows XP-like appearance.
      if ( e->Button->Pushed )
         e->Button->PartialPush = true;
         style = (FontStyle)(style | safe_cast<FontStyle>(e->Button->Tag));
         // If the button was not pushed, use a bitwise XOR 
         // combination to turn off that style 
         // and set the PartialPush property to false.
         e->Button->PartialPush = false;
         style = (FontStyle)(style ^ safe_cast<FontStyle>(e->Button->Tag));

      // Set the font using the existing RichTextBox font and the new
      // style.
      RichTextBox1->Font = gcnew System::Drawing::Font( RichTextBox1->Font,style );

.NET Framework
Available since 1.1
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