pragma endregion private System Void button8_Click System Object sende

#pragma endregion
private: System::Void button8_Click(System::Object^  sender, System::EventArgs^  e) {
			 textBox1 -> Clear();
			 textBox2 -> Clear();
			 label4 -> Text = "0";
			 textBox1 -> Focus();
		 }

private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
			 double a, b, c;
			 if(textBox1 -> Text == "") { 
				textBox1 -> Clear();
				textBox2 -> Clear();
				label4 -> Text = "0";
				MessageBox::Show("Введите аргументы","Ошибка",
					MessageBoxButtons::OK, MessageBoxIcon::Warning);
				textBox1 -> Focus();
			 } else if(textBox2 -> Text == "") {
				textBox1 -> Clear();
				textBox2 -> Clear();
				label4 -> Text = "0";
				MessageBox::Show("Введите аргументы","Ошибка",
					MessageBoxButtons::OK, MessageBoxIcon::Warning);
				textBox1 -> Focus();
			 } else {
				label4 -> Text = "";
				a = System::Convert::ToDouble(textBox1 -> Text);
				b = System::Convert::ToDouble(textBox2 -> Text);
				c = a + b;
				label4 -> Text = c.ToString("e");
			 }
		 }

private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
			 double a, b, c;
			 if(textBox1 -> Text == "") { 
				textBox1 -> Clear();
				textBox2 -> Clear();
				label4 -> Text = "0";
				MessageBox::Show("Введите аргументы","Ошибка",
					MessageBoxButtons::OK, MessageBoxIcon::Warning);
				textBox1 -> Focus();
			 } else if(textBox2 -> Text == "") {
				textBox1 -> Clear();
				textBox2 -> Clear();
				label4 -> Text = "0";
				MessageBox::Show("Введите аргументы","Ошибка",
					MessageBoxButtons::OK, MessageBoxIcon::Warning);
				textBox1 -> Focus();
			 } else {
				label4 -> Text = "";
				a = System::Convert::ToDouble(textBox1 -> Text);
				b = System::Convert::ToDouble(textBox2 -> Text);
				c = a - b;
				label4 -> Text = c.ToString("e");
			 }
		 }

private: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e) {
			 double a, b, c;
			 if(textBox1 -> Text == "") { 
				textBox1 -> Clear();
				textBox2 -> Clear();
				label4 -> Text = "0";
				MessageBox::Show("Введите аргументы","Ошибка",
					MessageBoxButtons::OK, MessageBoxIcon::Warning);
				textBox1 -> Focus();
			 } else if(textBox2 -> Text == "") {
				textBox1 -> Clear();
				textBox2 -> Clear();
				label4 -> Text = "0";
				MessageBox::Show("Введите аргументы","Ошибка",
					MessageBoxButtons::OK, MessageBoxIcon::Warning);
				textBox1 -> Focus();
			 } else {
				label4 -> Text = "";
				a = System::Convert::ToDouble(textBox1 -> Text);
				b = System::Convert::ToDouble(textBox2 -> Text);
				c = a * b;
				label4 -> Text = c.ToString("e");
			 }
		 }

private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) {
			 double a, b, c;
			 if(textBox1 -> Text == "") { 
				textBox1 -> Clear();
				textBox2 -> Clear();
				label4 -> Text = "0";
				MessageBox::Show("Введите аргументы","Ошибка",
					MessageBoxButtons::OK, MessageBoxIcon::Warning);
				textBox1 -> Focus();
			 } else if(textBox2 -> Text == "") {
				textBox1 -> Clear();
				textBox2 -> Clear();
				label4 -> Text = "0";
				MessageBox::Show("Введите аргументы","Ошибка",
					MessageBoxButtons::OK, MessageBoxIcon::Warning);
				textBox1 -> Focus();
			 } else {
				label4 -> Text = "";
				a = System::Convert::ToDouble(textBox1 -> Text);
				b = System::Convert::ToDouble(textBox2 -> Text);
				c = a / b;
				label4 -> Text = c.ToString("e");
			 }
		 }

private: System::Void button7_Click_1(System::Object^  sender, System::EventArgs^  e) {
			 Form2 ^f2 = gcnew Form2();
			 f2->Show();
		 }

private: System::Void button6_Click(System::Object^  sender, System::EventArgs^  e) {
			 Close();
		 }

private: System::Void button3_Click_1(System::Object^  sender, System::EventArgs^  e) {
			 textBox1 -> Clear();
			 textBox2 -> Clear();
			 textBox1 -> Text = label4 -> Text;
			 textBox2 -> Focus();
		 }