disable copy and paste in datagridview

问题:

I am a beginner in .net. This could be a silly question. I want to disable ctrl + c and ctrl + v keyboard shortcuts.

Before asking here I tried these codes link1 and link2 (not working)

private void dgvMain_CellEndEdit(object sender, DataGridViewCellEventArgs e)
    {
        this.dgvMain.ClipboardCopyMode = DataGridViewClipboardCopyMode.EnableWithoutHeaderText;
    }

    private void dgvMain_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
    {
        this.dgvMain.ClipboardCopyMode = DataGridViewClipboardCopyMode.Disable;
    }

and also

this.dgvMain.ClipboardCopyMode = DataGridViewClipboardCopyMode.Disable;

dgvMain is datagridview
I maybe missing something here.

EDIT:
The properties for my datagridview which I have altered are:

AllowUserToResizeColumns      -- False
AllowUserToResizeRows         -- False
ClipboardCopyMode             -- disable
ColumnsHeadersHeightSizeMode  -- AutoSize
Dock                          -- Fill
ReadOnly                      -- True   
TabStop                       -- False

Please help
Thanks in Advance.

回答1:

You don't spell out the not-working part, so I can only guess that you are referring to the TextBox part of the grid.

It should be enough to just have ClipboardCopyMode = Disable but if the TextBox of the cell is in edit mode, that property gets ignored. You would have to disable the keys and the ContextMenu yourself:

Example:

public Form1()
{
  InitializeComponent();
  dgvMain.ClipboardCopyMode = DataGridViewClipboardCopyMode.Disable;
  dgvMain.EditingControlShowing += dgvMain_EditingControlShowing;
}

void dgvMain_EditingControlShowing(object sender,
                                   DataGridViewEditingControlShowingEventArgs e)
{
  TextBox tb = e.Control as TextBox;
  if (tb != null) {
    tb.ContextMenuStrip = new ContextMenuStrip();
    tb.KeyDown -= TextBox_KeyDown;
    tb.KeyDown += TextBox_KeyDown;
  }
}

void TextBox_KeyDown(object sender, KeyEventArgs e)
{
  if (e.Control && (e.KeyCode == Keys.C | e.KeyCode == Keys.V)) {
    e.SuppressKeyPress = true;
  }
}

回答2:

You can try this.

private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            TextBox tb = e.Control as TextBox;
            tb.ShortcutsEnabled = false;
        }