2 8 10 16進位制轉換

UI Layout如下圖所示:

重要程式碼:
namespace 進制轉換
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
comboBox_From.SelectedIndex = 0;
comboBox_To.SelectedIndex = 2;
textBox_Source.Text = "0";
}

private void button1_Click(object sender, EventArgs e)
{
textBox_Result.Text = Convert2UrBase(textBox_Source.Text, int.Parse(comboBox_From.SelectedItem.ToString()), int.Parse(comboBox_To.SelectedItem.ToString())); }
public string Convert2UrBase(String Input_Value, int FromBase, int ToBase)
{
long RtnValue;
try
{
RtnValue = Convert.ToInt64(Input_Value, FromBase);
}
catch (Exception other)
{
RtnValue = 0;
}
return Convert.ToString(RtnValue, ToBase);
}

}
}