private void button2_Click(object sender, EventArgs e)
 {
     textBox1Name.Text = "";
     BAmounbt.ResetText();
     comboBox2BloodG.ResetText();
     comboBox1BGsearch.ResetText();
 }
 private void button1_Click(object sender, EventArgs e)
 {
     if (radioButton1.Checked != true && radioButton2.Checked != true)
     {
         MessageBox.Show("Select Donor or Employee", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
     if (radioButton1.Checked == true)
     {
         if (textBox1Name.Text != string.Empty && comboBox2BloodG.Text != string.Empty && BAmounbt.Text != string.Empty)
         {
             try
             {
                 database.con.Open();
                 SqlCommand csd = new SqlCommand("insert into Employee_D values('" + listBox2.SelectedItem + "','" + textBox1Name.Text + "','" + BAmounbt.Text.ToString() + "','" + DonationDate.Text + "','" + comboBox2BloodG.Text + "')", database.con);
                 csd.ExecuteNonQuery();
                 MessageBox.Show("Info Added", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                 textBox1Name.Text = "";
                 BAmounbt.ResetText();
                 comboBox2BloodG.ResetText();
                 DonationDate.ResetText();
             }
             catch (Exception ex)
             {
                 MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
             }
             finally
             {
                 database.con.Close();
             }
         }
         else
         {
             MessageBox.Show("Fill All Fields", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
         }
     }
     else if (radioButton2.Checked == true)
     {
         if (textBox1Name.Text != string.Empty && comboBox2BloodG.Text != string.Empty && BAmounbt.Text != string.Empty)
         {
             try
             {
                 database.con.Open();
                 SqlCommand csd = new SqlCommand("insert into Donor_Donation values('" + listBox1.SelectedItem + "','" + textBox1Name.Text + "','" + comboBox2BloodG.Text + "','" + BAmounbt.Text.ToString() + "','" + DonationDate.Text + "')", database.con);
                 csd.ExecuteNonQuery();
                 MessageBox.Show("Info Added", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                 textBox1Name.Text = "";
                 BAmounbt.ResetText();
                 comboBox2BloodG.ResetText();
                 DonationDate.ResetText();
             }
             catch (Exception ex)
             {
                 MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
             }
             finally
             {
                 database.con.Close();
             }
         }
         else
         {
             MessageBox.Show("Fill All Fields", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
         }
     }
 }