Reports for WinForms | ComponentOne
Using the C1ReportDesigner Control / Step 4 of 9: Add Code to Handle the Toolbar Commands
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    Step 4 of 9: Add Code to Handle the Toolbar Commands
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    To handle the clicks on the toolbar buttons and dispatch them to the appropriate handlers, use the following code:

    To write code in Visual Basic

    Visual Basic
    Copy Code 
    ' handle clicks on toolbar buttons        
Private Sub _tb_ButtonClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ToolBarButtonClickEventArgs) Handles _tb.ButtonClick       
        
    ' design/preview mode        
    If e.Button.Equals(_btnDesign) Then        
       SetDesignMode(True)        
    End If        
    If e.Button.Equals(_btnPreview) Then        
       SetDesignMode(False)        
        
    ' file commands        
    If e.Button.Equals(_btnNew) Then
       NewFile()        
    If e.Button.Equals(_btnOpen) Then        
       OpenFile()        
    If e.Button.Equals(_btnSave) Then        
       SaveFile()       
        
    ' allow user to undo clipboard operations        
    If e.Button.Equals(_btnCut) Or e.Button.Equals(_btnPaste) Then        
        _c1rd.UndoStack.SaveState()        
    End If       
        
    ' clipboard        
    If e.Button.Equals(_btnCut) Then        
       _c1rd.ClipboardHandler.Cut()        
    If e.Button.Equals(_btnCopy) Then        
       _c1rd.ClipboardHandler.Copy()        
    If e.Button.Equals(_btnPaste) Then        
             _c1rd.ClipboardHandler.Paste()       
        
    ' undo/redo        
    If e.Button.Equals(_btnUndo) Then        
       _c1rd.UndoStack.Undo()        
    If e.Button.Equals(_btnRedo) Then        
       _c1rd.UndoStack.Redo()
        
    ' add/remove reports        
    If e.Button.Equals(_btnAddReport) Then        
       NewReport()        
    If e.Button.Equals(_btnDelReport) Then        
       DeleteReport()        
 
    ' add fields        
    ' (just set create info and wait for CreateField event from designer)        
    If e.Button.Equals(_btnAddField) Then        
       _c1rd.CreateFieldInfo = e.Button        
    End If        
    If e.Button.Equals(_btnAddLabel) Then        
       _c1rd.CreateFieldInfo = e.Button        
    End If        
End Sub

    To write code in C#

    C#
    Copy Code 
    // handle clicks on toolbar buttons        
private void _tb_ButtonClick(object sender,        
    System.Windows.Forms.ToolBarButtonClickEventArgs e)        
{        
    // design/preview mode        
    if (e.Button == _btnDesign)     SetDesignMode(true);        
    if (e.Button == _btnPreview)    SetDesignMode(false);       

    // file commands        
    if (e.Button == _btnNew)        NewFile();        
    if (e.Button == _btnOpen)       OpenFile();        
    if (e.Button == _btnSave)       SaveFile();
  
    // allow user to undo clipboard operations        
    if (e.Button == _btnCut || e.Button == _btnPaste)        
        _c1rd.UndoStack.SaveState();

    // clipboard        
    if (e.Button == _btnCut)      _c1rd.ClipboardHandler.Cut();        
    if (e.Button == _btnCopy)     _c1rd.ClipboardHandler.Copy();        
    if (e.Button == _btnPaste)    _c1rd.ClipboardHandler.Paste();

    // undo/redo        
    if (e.Button == _btnUndo)     _c1rd.UndoStack.Undo();        
    if (e.Button == _btnRedo)     _c1rd.UndoStack.Redo();        

    // add/remove reports        
    if (e.Button == _btnAddReport)   NewReport();        
    if (e.Button == _btnDelReport)   DeleteReport();

    // add fields        
    // (just set create info and wait for CreateField event from designer)        
    if (e.Button == _btnAddField)    _c1rd.CreateFieldInfo = e.Button;        
    if (e.Button == _btnAddLabel)    _c1rd.CreateFieldInfo = e.Button;        
}

    This routine dispatches about half of the commands to specialized handlers. These will be described later. The other half (clipboard, undo/redo) is handled directly by the C1ReportDesigner control.

    Note that before calling the Cut and Paste methods, the code calls the SaveState method to save the current state of the report. This allows the user to undo and redo clipboard operations. In general, your code should always call SaveState before making changes to the report.