lookupedit可编辑可选择

增加【值变化】事件，把新编辑的数据add进数据源即可
如果出现必须鼠标定位一下值才出来，参考以下

sQJYY.Focus();
xtraScrollableControl1.Focus();

 private void cboBlzd_ProcessNewValue(object sender, ProcessNewValueEventArgs e)
        {
            if (m_DiagnosisPathology.Find(a => a.DIAG_NAME == cboBlzd.Text) == null)
            {
                EMR_DIAGVIEW t = m_DiagnosisPathology[0];//.RemoveAt(m_DiagnosisPathology.Count - 1);
                //EMR_DIAGVIEW t = new EMR_DIAGVIEW();
                RepositoryItemGridLookUpEdit Edit = ((GridLookUpEdit)sender).Properties;
                if (e.DisplayValue == null || Edit.NullText.Equals(e.DisplayValue) || string.Empty.Equals(e.DisplayValue))
                {
                    return;
                }

                t.DIAG_NAME = cboBlzd.Text.Trim();
                t.DIAG_CODE = "--";
                //m_DiagnosisPathology.Add(t);
                e.Handled = true;
                cboBlzd.Properties.DataSource = m_DiagnosisPathology;

                //cboBlzd.EditValue = t.DIAG_CODE;
            }
        }