private void button8_Click(object sender, EventArgs e)
 {
     try
     {
         string DELETE = string.Format("delete from BATCH where BATCHID= ('{0}')", Convert.ToInt32(BatchIDtextbox.Text));
         EventMangementSystemClass.DeleteQuery(DELETE);
         BatchIDtextbox.Clear();
         textBox3.Clear();
         dateTimePicker1.ResetText();
         COMPANY_BATCH_PACKING_Load(sender, e);
         dataGridView3.Refresh();
     }
     catch (Exception EX)
     {
         MessageBox.Show(EX.Message);
     }
 }
 private void button7_Click(object sender, EventArgs e)
 {
     try
     {
         System.DateTime sdate = default(System.DateTime);
         sdate = dateTimePicker1.Value;
         System.DateTime sdate1 = default(System.DateTime);
         sdate1 = dateTimePicker1.Value;
         System.DateTime sdate2 = default(System.DateTime);
         sdate2 = dateTimePicker1.Value;
         string updatequery = string.Format("UPDATE BATCH SET BATCHNAME = ('{0}'),BATCHDATE = ('{1}') WHERE BATCHID = ('{2}')", textBox3.Text, sdate, Convert.ToInt32(BatchIDtextbox.Text));
         EventMangementSystemClass.Update(updatequery);
         BatchIDtextbox.Clear();
         textBox3.Clear();
         dateTimePicker1.ResetText();
         COMPANY_BATCH_PACKING_Load(sender, e);
         dataGridView3.Refresh();
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message);
     }
 }
 private void button9_Click(object sender, EventArgs e)
 {
     try
     {
         System.DateTime sdate = default(System.DateTime);
         sdate = dateTimePicker1.Value;
         System.DateTime sdate1 = default(System.DateTime);
         sdate1 = dateTimePicker1.Value;
         System.DateTime sdate2 = default(System.DateTime);
         sdate2 = dateTimePicker1.Value;
         string addquery = string.Format("insert into BATCH(BATCHNAME,BATCHDATE) values ('{0}','{1}')", textBox3.Text, sdate);
         EventMangementSystemClass.Add(addquery);
         BatchIDtextbox.Clear();
         textBox3.Clear();
         dateTimePicker1.ResetText();
         COMPANY_BATCH_PACKING_Load(sender, e);
         dataGridView3.Refresh();
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message);
     }
 }