[DOTNET] Cut, Copy Paste, etc. in the Edit menu?

[Peter Stephens]

Unlike FoxPro or MFC there doesn't seem to be any automagic support for the
standard edit commands in a main menu. The textbox does have a context menu,
but there doesn't seem to be a way to associate that with a main menu or a
merge menu (in MDI).

I have an idea for a method that might work:

------>
bool AllowCut()
{
        TextBox textBox = GetCurrentControlAsTextBox();
        if(textBox == null) return false;

        // Do we have text to cut?
        return textBox.SelectionLength > 0;
}

void CutText()
{
        TextBox textBox = GetCurrentControlAsTextBox();
        if(textBox == null) return;

        // Cut the text
        if(textBox.SelectionLength <= 0) return;
        Clipboard.SetDataObject(textBox.SelectedText);
        textBox.SelectedText = "";
}

// Return active control if it is a textbox, otherwise null
TextBox GetCurrentControlAsTextBox()
{
        Form activeWin = ActiveMdiChild;
        if(activeWin == null) return null;
        Control activeControl = activeWin.ActiveControl;
        if(activeControl == null) return null;
        return activeControl as TextBox;
}

<------

These routines would be wired into a main MDI window.
This code has _NOT_ been tested and might not work, but it is where I will
start. Better ideas are welcome!

--
Peter

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