private void TxtZeroVolt_KeyPress(object sender, KeyPressEventArgs e)
{
switch (e.KeyChar)
{
case (char)13: //Return
TxtZeroVolt.Visible = false;
zeroVoltPoint.fNumber = zeroVoltPoint.gFlt(TxtZeroVolt.Text);
VoltDiv.fNumber = VoltDiv.gFlt(this.CmbVoltDiv.Text);
for (int i = 0; i < this.Lbl_V_Axis.GetUpperBound(0) + 1; i++)
{
this.V_axis[i].fNumber = (i - this.Lbl_V_Axis.GetUpperBound(0) / 2) * VoltDiv.fNumber + zeroVoltPoint.fNumber;
this.Lbl_V_Axis[i].Text = this.V_axis[i].gStr("V");
}
SendTransformParams();
break;
case (char)8: //Backspace
break;
default:
string Input = "";
for (int i = 0; i <= TxtZeroVolt.SelectionStart - 1; i++)
{
Input += TxtZeroVolt.Text[i];
}
Input += e.KeyChar;
if (TxtZeroVolt.TextLength > 0)
{
for (int i = TxtZeroVolt.SelectionStart + TxtZeroVolt.SelectionLength; i <= TxtZeroVolt.TextLength - 1; i++)
{
Input += TxtZeroVolt.Text[i];
}
}
if (Input[Input.Length - 1] != 'V')
{
Input += 'V';
}
//string allValidChar = "-+0123456789mV,.";// + (char)8 + (char)127;
string firstValidChar = "-+0123456789";// + (char)8 + (char)127;
string secondValidChar = "0123456789mV,.";
string bodyValidChar = "0123456789,.";
string secondlastValidChar = "0123456789,.m";
string lastValidChar = "mV";
char[] InputArr = Input.ToCharArray();
int Up = InputArr.GetUpperBound(0);
if (Up > -1 && firstValidChar.IndexOf(InputArr[0]) == -1)
{
InputArr[0] = '_';
}
if (Up > 0 && secondValidChar.IndexOf(InputArr[1]) == -1)
{
InputArr[1] = '_';
}
for (int i = 2; i <= Up - 2; i++)
{
if (bodyValidChar.IndexOf(InputArr[i]) == -1)
{
InputArr[i] = '_';
}
}
if (Up > 0 && secondlastValidChar.IndexOf(InputArr[Up - 1]) == -1)
{
InputArr[Up - 1] = '_';
}
if (Up > 0 && lastValidChar.IndexOf(InputArr[Up]) == -1)
{
InputArr[Up] = '_';
}
int len = 0; for (int i = 0; i <= InputArr.GetUpperBound(0); i++)
{
if (InputArr[i] != '_')
{
len++;
}
}
char[] OutputArr = new char[len]; int y = 0;
for (int i = 0; i <= InputArr.GetUpperBound(0); i++)
{
if (InputArr[i] != '_')
{
OutputArr[y] = InputArr[i]; y++;
}
}
//OutputArr[OutputArr.GetUpperBound(0)] = "\n";
this.TxtZeroVolt.Text = new string(OutputArr);
if (TxtZeroVolt.Text.Length > 0)
{
TxtZeroVolt.Select(TxtZeroVolt.Text.Length - 1, 0);
}
e.Handled = true;
break;
}
}
private void SetToZero_Click(object sender, EventArgs e)
{
TxtZeroVolt.Visible = true;
TxtZeroVolt.Focus();
}