C#中隐藏文本框内容的代码

Question

单击 Button1 Txtebox3的文本内容为隐藏
单击 Button2 Txtebox3的文本内容为显示

Answer 1

如果你所谓的隐藏是指将Txtebox3里面输入的内容都变成像输入密码那样都是*号，那么你可以在button1的click事件中添加如下代码：Txtebox3.PasswordChar = '*';
然后在button2的click时间中添加如下代码：Txtebox3.PasswordChar=Convert.ToChar(0);

Answer 2

        protected void Button1_Click(object sender, EventArgs e)
        {
            ViewState["tmp"] = TextBox1.Text;
            TextBox1.Text = "";
        }

        protected void Button2_Click(object sender, EventArgs e)
        {
            if (ViewState["tmp"] != null)
            {
                TextBox1.Text = ViewState["tmp"].ToString();
            } 
        }

Answer 3

private button1_Clieck(object send, EventArgs e)
{
textBox3.Text = “”;
}
private button2_Clieck(object send, EventArgs e)
{
textBox3.Text = “”;
}

Answer 4

string temp;

private button1_Clieck(object send, EventArgs e)
{
temp = textBox3.Text;
textBox3.Text = string.Empty;
}
private button2_Clieck(object send, EventArgs e)
{
textBox3.Text = temp;

}