string testHexString(string inputString, int length, ref ushort outPut)
{
string workString = inputString;
ushort workOutPut = outPut;
if (workString.Length > length)
{
workString = workString.Substring(0, length);
}
if (workString.Length == 4)
{
int discarded = 0;
byte[] result = new byte[2];
result = HexEncoding.GetBytes(workString, out discarded);
try
{
outPut = (ushort)((result[0] << 8) + result[1]);
return(workString);
}
catch
{
AsyncMessageBox asyncMSGBOX = new AsyncMessageBox("No valid Hex value");
asyncMSGBOX.Show();
workString = "";
outPut = 0;
return(workString);
}
}
return(workString);
}
private void textBoxHoldingRegsWrite_TextChanged(object sender, EventArgs e)
{
if (textBoxHoldingRegsWrite.Text.Length > 4)
{
textBoxHoldingRegsWrite.Text = textBoxHoldingRegsWrite.Text.Substring(0, 4);
}
if (textBoxHoldingRegsWrite.Text.Length == 4)
{
int discarded = 0;
byte[] result = new byte[2];
result = HexEncoding.GetBytes(textBoxHoldingRegsWrite.Text, out discarded);
try
{
HoldingRegsWriteAddress = result;
textBoxHoldingRegsDecWrite.Text = (((int)HoldingRegsWriteAddress[0] << 8) + (int)HoldingRegsWriteAddress[1]).ToString();
}
catch
{
AsyncMessageBox asyncMSGBOX = new AsyncMessageBox("No valid Hex value");
asyncMSGBOX.Show();
textBoxHoldingRegsWrite.Text = "";
textBoxHoldingRegsDecWrite.Text = "";
HoldingRegsWriteAddress[0] = 0x00;
HoldingRegsWriteAddress[1] = 0x00;
}
}
}
private void textBoxCoilAddressRead_TextChanged(object sender, EventArgs e)
{
if (textBoxCoilAddressRead.Text.Length > 4)
{
textBoxCoilAddressRead.Text = textBoxCoilAddressRead.Text.Substring(0, 4);
}
if (textBoxCoilAddressRead.Text.Length == 4)
{
int discarded = 0;
byte[] result = new byte[2];
result = HexEncoding.GetBytes(textBoxCoilAddressRead.Text, out discarded);
try
{
coilAddressRead = result;
textBoxCoilDecAddressRead.Text = ((int)coilAddressRead[0] * 256 + (int)coilAddressRead[1]).ToString();
}
catch
{
AsyncMessageBox asyncMSGBOX = new AsyncMessageBox("No valid Hex value");
asyncMSGBOX.Show();
textBoxCoilAddressRead.Text = "";
textBoxCoilDecAddressRead.Text = "";
coilAddressRead[0] = 0x00;
coilAddressRead[1] = 0x00;
}
}
}
private void textBoxRegWriteValue_TextChanged(object sender, EventArgs e)
{
if (textBoxRegWriteValue.Text.Length > 4)
{
textBoxRegWriteValue.Text = textBoxRegWriteValue.Text.Substring(0, 4);
}
if (textBoxRegWriteValue.Text.Length == 4)
{
int discarded = 0;
byte[] result = new byte[2];
result = HexEncoding.GetBytes(textBoxRegWriteValue.Text, out discarded);
try
{
RegWriteValue = result;
}
catch
{
AsyncMessageBox asyncMSGBOX = new AsyncMessageBox("No valid Hex value");
asyncMSGBOX.Show();
textBoxRegWriteValue.Text = "0000";
RegWriteValue[0] = 0x00;
RegWriteValue[1] = 0x00;
}
}
}
private void textBoxAddress_TextChanged(object sender, EventArgs e)
{
if (textBoxAddress.Text.Length > 2)
{
textBoxAddress.Text = textBoxAddress.Text.Substring(0, 2);
}
if (textBoxAddress.Text.Length == 2)
{
int discarded = 0;
byte[] result = new byte[1];
result = HexEncoding.GetBytes(textBoxAddress.Text, out discarded);
try
{
clientAddress = result[0];
textBox2.Text = clientAddress.ToString();
}
catch
{
AsyncMessageBox asyncMSGBOX = new AsyncMessageBox("No valid Hex value");
asyncMSGBOX.Show();
textBoxAddress.Text = "";
textBox2.Text = "";
clientAddress = 0x00;
}
}
}