private void button1_Click(object sender, EventArgs e)
 {
     AddEditSkillCategory aesc = new AddEditSkillCategory();
     aesc.User = User;
     aesc.ShowDialog();
     if(aesc.DialogResult==DialogResult.OK)
     {
         Rebind();
     }
 }
 private void button2_Click(object sender, EventArgs e)
 {
     if(dataGridView1.SelectedRows.Count>0)
     {
         AddEditSkillCategory aesc = new AddEditSkillCategory();
         aesc.User = User;
         aesc.currentSkillCategoryId = Categories[dataGridView1.SelectedRows[0].Index].Id;
         aesc.ShowDialog();
         if (aesc.DialogResult == DialogResult.OK)
         {
             Rebind();
         }
     }
 }