c#windows按钮怎么实现十进制转16进制

[XL627957378]

private void button3_Click(object sender, EventArgs e)
{ string str2 = txt_char.Text;


txt_ASCII.Text =
}

还要判断输入字符串是否为十进制数、、！！！ 感谢！！！！

[threenewbee]

int v = 0; if (int.TryParse(str2, out 0)) { txt_ASCII.Text = v.ToString("X"); } else { MessageBox.Show("非法数字"); }

[娃都会打酱油了]

你是要10进制还是16进制？字符串判断

[crystal_lz]

txt_ASCII.Text = BitConverter.ToString(Encoding.ASCII.GetBytes(txt_char.Text)).Replace("-","");