title: how to set devexpress lookupedit selected text in gridvidew
body: <p>I have a grid which has two columns and the the first column has a lookupedit. I can fill the grid and the lookupedits but my problem is I dont know how to set the selectedtext according to the database?</p>
  
  <p><img src="https://i.stack.imgur.com/UxTo5.png" alt="This is my grid"></p>
  
  <p>here is how I fill the grid and the lookupedit</p>
  
  <pre><code>private void fill_budget_settings(){
          fill_tanim_lookupedit(); 
          gc.DataSource = dataContext.getObjectList("RN_BUDGET_SETTINGS", "*", 0, "", "", 0, 0);
          gv.BestFitColumns();
      }
  
      private void fill_tanim_lookupedit()
      {
          int cnt = gv.DataRowCount;
  
          lookUpEditTanim = new RepositoryItemLookUpEdit();
          lookUpEditTanim.DataSource = dataContext.getObjectList("RN_BUDGET_SETTINGS_VARIABLES", "*", 0, "", "", 0, 0);
          lookUpEditTanim.ValueMember = "VARIABLE";
          lookUpEditTanim.DisplayMember = "VARIABLE";
  
          gv.Columns[0].ColumnEdit = lookUpEditTanim;
      }
  </code></pre>
  
  <p>when the form is loaded, grid gets filled, lookupedits get filled but lookupedits dont get selected with data required according to the database. how can I do that?</p>