how to disable copy, Paste and delete features on a textbox using C#

Question

Can anybody please suggest how to handle Cut,Copy and Paste events on a Text Box in WinForms using C#?

Answer 1

Suppose you have a TextBox named textbox1. It sounds like you want to disable the cut, copy and paste functionality of a TextBox.

Try this quick and dirty proof of concept snippet:

private void Form1_Load(object sender, EventArgs e)
{
    ContextMenu _blankContextMenu = new ContextMenu();
    textBox1.ContextMenu = _blankContextMenu; 
}


private const Keys CopyKeys = Keys.Control | Keys.C;
private const Keys PasteKeys = Keys.Control | Keys.V;

protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
    if ((keyData == CopyKeys) || (keyData == PasteKeys))
    {
        return true;
    }
    else
    {
        return base.ProcessCmdKey(ref msg, keyData);
    }
}