private void resetFormToolStripMenuItem_Click(object sender, EventArgs e)
 {
     StudentId.Clear();
     StudentName.Clear();
     Std.Clear();
     Div.Clear();
     RollNo.Clear();
     Gender.Clear();
     Category.Clear();
     dob.Clear();
     StudentId.Focus();
 }
 private void StudentList_Load(object sender, EventArgs e)
 {
     StudentId.Focus();
     LoadDataIntoDataGridView();
 }