如何在C＃中使用文本框将多个HEX值输入到数组中

Question

I'm trying to use a textbox control so the user can input Hex values into it, press enter and it is stored in an array. Then enter another hex value press enter and it is stored in the array.

I'm new to programming, so maybe there is a more suitable control than textbox to do this?

This is the code I've come up with so far, I'm not sure how you would clear the textbox when the user presses enter though, maybe there is something more suitable to input the values?

Any help would be appreciated!

    private void Test_TextChanged(object sender, EventArgs e)
    {

        string hexString = Test.Text;
        int num = Int32.Parse(hexString, System.Globalization.NumberStyles.HexNumber);
        int[] arr = new int[20];

        for (uint i = 0; i < 5; i++)
        {

            arr[i] = num;
            ReadValue.Text = num.ToString();
        }

    }

Answer 1

You can use the NumericUpDown control and set its Hexadecimal property to true . Than you can use his KeyDown event

private List<int> hexValues = new List<int>();

private void numericUpDown1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Enter)
    {
        hexValues.Add(Convert.ToInt32(numericUpDown1.Value));

        // Reset the value.
        numericUpDown1.Value = Decimal.Zero;
    }
}

Then if you need the array:

int[] hexValuesArray = hexValues.ToArray();