從文本框在C＃中刪除最後一個字符

Question

我想要一個按鈕，從一個文本框刪除最後一個字符，就像在Windows計算器左箭頭按鈕

private void button15_Click(object sender, EventArgs e) 
{ 

} 

Answer 1

private void button15_Click(object sender, EventArgs e) 
{ 
    var text = txtSomething.Text; 
    txtSomething.Text = text.Remove(text.Length - 1); 
} 

Answer 2

除非有沒有額外的要求，這是你需要什麼

var text = "something"; //your TextBox.Text 
if (text.Length > 0) 
    text = text.Remove(text.Length - 1); 

Answer 3

這個怎麼樣？

private void button15_Click(object sender, EventArgs e) 
{ 
    string sYourText = txtYourTextBox.Text; 
    if (!String.IsNullOrEmpty(sYourText)){ 
     sYourText = sYourText.substring(0, sYourText.Length -1); 
      txtYourTextBox.Text = sYourText; 
    } 
}