title: When i get SelectedItem in combobox return System.Data.DataRowView
body: <p>this is a function for retrive two field in sql to combobox :
  <strong>Code :</strong></p>
  
  <pre><code>public void FillCmbKala()
      {
          cmbKala.Items.Clear();
          objCon.Connecting();
          string SQL = "SELECT [kID],[kName] FROM tblKala ORDER BY kName";
          DataSet ds = new DataSet();
          using (SqlConnection cn = new SqlConnection(objCon.StrCon))
          {
                using (SqlDataAdapter adapter = new SqlDataAdapter(SQL, cn))
                {
  
                    cn.Open();
  
                try
                {
                    adapter.Fill(ds);
                }
                catch (SqlException e)
                {
  
                    MessageBox.Show("There was an error accessing your data of 'Kala'. DETAIL: " + e.ToString());
                }
                finally
                {
                   cn.Close();
                }
            }
       }
       cmbKala.DataSource = ds.Tables[0];
       cmbKala.DisplayMember = "kName";
       cmbKala.ValueMember = "kID";
  }
  </code></pre>
  
  <p>when i use the combobox return System.Data.DataRowView !</p>
  
  <p>For Example :</p>
  
  <pre><code>string str= cmbKala.SelectedItem;
  </code></pre>
  
  <p><strong>result is :</strong>  str= System.Data.DataRowView</p>