to the simple calculator$$Instructions$$To ensure a comprehensive review of your assignment, it is request that you submit your work in PDF format$$PDF Report:$$Create a PDF document showcasing the proper functionality of your application.$$Please incorporate screenshots or images within your submission to provide a visual demonstration of your$$application running seamlessly. Additionally, include code screenshots to ensure a clear and well$-$commented$$representation of your programming implementation.$$For this assignment, you need to create a Simple Calculator form. Your job is to design, write$$code$,$ and include features that handle errors and check if the data entered is valid. You can refer$$to the rubric provided at the end of this assignment for additional guidance.$$A$.$ Adding exception handling to the simple calculator$$Entry Error$$Divide$-$by$-$zero error. Please enter a non$-$zero value for operand $2.$Add a try$-$catch statement in the btnCalculate$\_$Click$()$ event handler that will$$catch any exceptions that occur when the statements in that event handler are$$executed$.$ If an exception occurs, display a dialog with the error message, the type$$of error, and a stack trace. Test the app by entering a nonnumeric value for one of$$the operands.$$Add three additional catch blocks to the try$-$catch statement that will catch a$$FormatException$,$ an OverflowException, and a DivideByZeroException. These$$catch blocks should display a dialog with an appropriate error message B$.$ Add data validation to the simple calculator$$In this part of the assignment, you will add data validation to the Simple Calculator $$form$1.$ Code methods named IsPresent$(),$ IsDecimal$(),$ and IsWithinRange$()$ that work $$like the methods described in chapter $7$ of the book.$2.$ Code a method named IsOperator$()$ that checks that the string value that$$s passed $$to it is$+,-,*,$ or $/.3.$ Code a method named IsValidOperation$()$ that checks for a divide by zero $$operation$.$ This method will need to check the value of the Operand $2$ text box and $$the value of the Operator text box.$4.$ Code a method named IsValidData$()$ that checks that the Operand $1$ and Operand $2$ text boxes contain a decimal value between $0$ and $1,000,000,$ that the Operator $$text box contains a valid operator, and that the operation is valid.$5.$ Delete all the catch blocks from the try$-$catch statement in the $$btnCalculate$\_$Click$()$ event handler except for the one that catches any exception. $$Then$,$ add code to this event handler that performs the calculation and displays the $$result only if the values of the text boxes are valid.$6.$ Test the app to be sure that all the data is validated properly. Document the results $$in the assignment file