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Methods

mama6347 (4)
Hi I have a project where we need to create a bank account and its mostly with using methods. Im about 50% done but Im drawing a blank on this certain part. The bank account begins on a tab where the enter their personal info (name address etc.) and theres also a part where they have to enter the balance that theyre starting their account with. The starting balance is supposed to be "passed to the createAccount method. and a negative starting balance isnt allowed. Can anyone give me any guidance on how to do this? Thank you!



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	// declare variables used by multiple methods
			 String^ fName;
			 String^ lName;
			 String^ address;
			 String^ deposit;
			// String^ checking;
			// String^ savings;
			 double bal;
			 String^ transact;

	private: System::Void tabPage2_Click(System::Object^  sender, System::EventArgs^  e) {
			 }
private: System::Void tabPage4_Click(System::Object^  sender, System::EventArgs^  e) {
		 }
private: System::Void textBox2_TextChanged(System::Object^  sender, System::EventArgs^  e) {
		 }
private: System::Void textBox1_TextChanged(System::Object^  sender, System::EventArgs^  e) {
		 }
private: System::Void textBox3_TextChanged(System::Object^  sender, System::EventArgs^  e) {
		 }
private: System::Void tabControl1_SelectedIndexChanged(System::Object^  sender, System::EventArgs^  e) {
		 }
private: System::Void btnSubmit_Click(System::Object^  sender, System::EventArgs^  e) {
			 /*
			 If Create Account, then
			  - fName = txtfName 
			  - lName = txtlName
			  - address = txtAddress
			  - bal = txtBal

			 */
			  
			 

			 if (tabControl1->SelectedTab == tabPage1)
//			 if (activeTab = "CreateAccount")
			 {
				 // If Create Account is submitted
				 fName = txtfName->Text;
				 lName = txtlName->Text;
				 address = txtAddress->Text;
				 Double::TryParse(txtBal->Text, bal);
				 //checking = cmbAccType->Text;
				// savings = cmbAccType->Text;
			 
				 txtfName->ReadOnly = true;
				 txtlName->ReadOnly = true;
				 txtAddress->ReadOnly = true;
				 txtBal->ReadOnly = true;
				 txtDeposit->ReadOnly = false;
				 txtWDraw->ReadOnly = false;
				 

				

			 } if (tabControl1->SelectedTab == tabPage5)
			 {
					lblfName->Text = fName;
					lbllName->Text = lName;
					lblAddress->Text = address;
					//lblAccType->Text = 
					//lblBal->Text = ToString(bal);
			 }		
					
			 {
			 // If Account Details is submitted
			 }


			 //Transactions
			 
			 //txtTran->Text = transact;
			 txtDeposit->Text = deposit;

			 
				 

			 //txtSum->Text = sum.ToString();



			//Balance account detail

			 lblBal->Text = +



			 //closing account, enable and disable txtboxes and clear data
			 
		 	if (tabControl1->SelectedTab == tabPage4)
			 { 
				 MessageBox::Show("Account has been closed!!");

				 txtfName->ReadOnly = false;
				 txtlName->ReadOnly = false;
				 txtAddress->ReadOnly = false;
				 txtBal->ReadOnly = false;
				 txtDeposit->ReadOnly = true;
				 txtWDraw->ReadOnly = true;
				 txtfName->Text = "";
				 txtlName->Text = "";
				 txtAddress->Text = "";
				 txtBal->Text = "";
			}


		 }
private: System::Void tabPage1_Click(System::Object^  sender, System::EventArgs^  e) {
		 }

private: System::Void tabPage5_Click_1(System::Object^  sender, System::EventArgs^  e) {
		 }
};
}
nano511 (373)
First, your code is very messy and i did not bother reading it. But from your description, try something like this.

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do
{
     //prompt use for input
     std::cin >> balance; // or how ever you are getting input
}while( balance >= 0 )


You should probably display a message to the user too like "Cannot have a negative balance." or something.
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