//Sumbutton
private void buttonSum_Click(object sender, EventArgs e)
{
removeDecimal();
//Methods already gone through first update the calculationtextbox so all info
//is brought to the listbox
CalcTextboxUpdate(CI.selectedcalcmethod);
//The old arithmetic sign is removed from the Calculationstring before adding it to the listbox
textBoxCalculations.Text = textBoxCalculations.Text.Remove(textBoxCalculations.Text.Length - 1);
//Then make sure the current calculation is carried out and if everything is ok...
if (calculate(CI.selectedcalcmethod))
{
//... An item is added as a historyrecord object unless there have been an error in calculations
listBoxHistory.Items.Add(new HistoryRecord(textBoxCalculations.Text, double.Parse(textBoxOutput.Text, fmt)));
}
//This is basically a C button event but to avoid getting a canceling event i the logg
//I reset it piece by piece
#region CHANGE`S 1.
//Old code, Would return 0 to the Output textbox after sum
//textBoxOutput.Text = "0";
//textBoxCalculations.Text = null;
//CI.Creset();
//New code, Let's the value of the outputbox retain it's value to the next calculation
textBoxCalculations.Text = null;
CI.Creset();
CI.currentSum = double.Parse(textBoxOutput.Text, fmt);
#endregion
}
}/// <summary>
/// 2.Addition 3.Substraction 4.Multiplikation 5.Division
/// </summary>
/// <param name="switchis">Choose between the Arithmetics</param>
/// <param name="inputdata">The number to count with</param>
/// <returns>Sets CI.currentsum to the calculated value</returns>
public void Calculations(int switchis, double inputdata)
{
double returner = inputdata;
switch (switchis)
{
//Addition
case 2:
{
returner = double.Parse(Methods[(switchis)].Invoke(null, new object[] { CI.currentSum, inputdata }).ToString());
break;
}
//Substraction
case 3:
{
returner = double.Parse(Methods[(switchis)].Invoke(null, new object[] { CI.currentSum, inputdata }).ToString());
break;
}
//Multiplication
case 4:
{
returner = double.Parse(Methods[(switchis)].Invoke(null, new object[] { CI.currentSum, inputdata }).ToString());
break;
}
//Division
case 5:
{
if (inputdata == 0)
{
//old solution before a more serious one
#region Old Joke
//This is a joke. Could be set to anything. in any case dividing by 0 is an infinity
//soooo... ...
//returner = 1337;
#endregion
#region CHANGE`S 2
//Added null check.
//Fire an event
if (DivideByZero != null)
{
DivideByZero();
}
#endregion
//Begin reseting calculation
CI.Creset();
}
else
{
returner = double.Parse(Methods[(switchis)].Invoke(null, new object[] { CI.currentSum, inputdata }).ToString());
}
break;
}
default:
{
break;
}
}
//If the answer is less then 0 throw the Negative event with returner as parameter
if (returner < 0)
{
#region CHANGE`S 3
//Added Nullcheck
if (Negative != null)
{
Negative(returner);
}
#endregion
}
//finaly set CI.currentsum to the value
CI.currentSum = returner;
}