Disable a Textbox when Text Change In WinForm Textbox

When text changed method being trigger, getting the updated value from ‘sender’ to execute requirements.

private void _onTxtPrefix_TextChanged(object sender, EventArgs e) {
   var t = (Control)sender;
   if (t.Text == "abc") { txtFqdn.Text = "12345"; txtFqdn.Enabled = false; }
   else { txtFqdn.Text = ""; txtFqdn.ReadOnly = false; txtFqdn.Enabled = true; }
}

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.