How to pass a text behind a button and pass it to a text box? like a "Preview"

Question

1. There is a small text inside the button:

   private void TASKTOVSWRBTN_Click(object sender, EventArgs e)
   {
    Clipboard.SetText("The Network Operations Center is requesting a field engineer to attend the site in order to solve this issue. " +
       "\n Check carefully the hardware, cabling or passive network equipments, so the issue can be easily identified." +
       "\n If support is needed, please ring us, we will be here 24 / 7 to help.");
   

2. I Want to preview the text behind the button inside the text box

3. Copy the text to the Clipboard.

4. Currently I can only copy from the button to the clip board. but i want to see the text before send it to Clipboard, like a preview.

Answer 1

That would simply be:

private void TASKTOVSWRBTN_Click(object sender, EventArgs e)
{
    // "preview" the message in the textbox:
    bunifuMetroTextbox1.Text = "The Network Operations Center is requesting a field engineer to attend the site in order to solve this issue. " +
       "\n Check carefully the hardware, cabling or passive network equipments, so the issue can be easily identified." +
       "\n If support is needed, please ring us, we will be here 24 / 7 to help.";
}

private void btnGetIt_Click(object sender, EventArgs e)
{
    // if the textbox is not empty, then place its contents on the clipboard
    if (bunifuMetroTextbox1.Text.Trim().Length > 0)
    {
        Clipboard.SetText(bunifuMetroTextbox1.Text.Trim());
    }
}