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$67$Extra exercises for Murach's ASP. NET $4\mathrm{.}6$ with C# $2015$Extra $4-1$The application for this exercise is an enhanced version of the one for exercise $3-1.$ First,the Quotation has a confirm button to the right of the Calculate button. Second, theConfim button redirects to a Confimation page.The Quotation page $($Default$.$aspx$)$Enhance the the Quotation applicationPrice quotation$4.$es prcet amonThe Confirmation page $($Confirm$.$aspx$)$total prce$6$Eer pece at ducout amQuotation confirmationSaes prceDcount ancuntSend confirmation toNaneEmat atess$13$Open the web application for this exercise and start enhancing its pagesI. Open the web application named XEx$(04$Quotation in your exercises extra folder. tincludes the aspx and code $-$behind files for the pages shown above, but the first pagedoesn't have the code for the Confim button and the second page doesn't have theExtra exercises for Murach's ASP.NET $4\mathrm{.}6$ with C# $2015$nd ck CaeCiK he Sond auctaton utio to sen$2.$ Add the Confirm button to the Ouotation page right after the Calculate button, and setits CssClass property to the btn and bth$-$primary classesGce opper$3.$ Add the Send Quotation and Return buttons to the Confirmation page, and set theappropriate CssClass values. Also, set the propertics for the Return button so it gocsback to the Quotation page and doesn't cause validation.geavco condcode for either of the buttons that are shown. And neither page has the code for thelabel with the message that's displayed below the buttons.heCsCtSend Guctaoncode$\mathrm{.}5.$ Test the application to see how it's going, and make any adjustments.Add the C# code that makes the application workLoad event handler.Create a Click event handler for the Confim buton of the Quotation page. Thisis being confired hy eettine$7.$ To make this work, the Click event handler for the Calculate button of the Quotationpage should save the sales price, discount amount, and total price in session state.Now, add that code to that event handler$\mathrm{.}8.$ When the user clicks the Confim button on the Quotation page to go to theConfimation page, the Load event haler for te Conmo pgand display it as:$9.$ Add an event handler for the Click event of the Send Quotation button. If the entriesfor this form are valid, this handler should use the data entered by the user to displayshould also set the valucs in sesion state to null.Test and refine the operation of the application.a message below the buttons that says: "Quotation sent to