title: Datagridview Combobox columns won't dropdown (C#)
body: <p>I have a datagridview filled with 8 columns of comboboxes, and 32 rows.</p>
  
  <pre><code>    private void frm_Main_Load(object sender, EventArgs e)
      {
          // Make 32 rows total
          for (int i = 0; i &lt;= 30; i++)
          {
              DataGridView1.Rows.Add();
          }
          PopulateComboBoxes();
      }
  </code></pre>
  
  <p>and I've also added some items to each of them. For some reason they won't drop down when I click them.</p>
  
  <p>I have looked around, but nothing seems to work.</p>
  
  <p>edit:
  It just adds each of the dropdown options in</p>
  
  <pre><code>    public void PopulateDropDowns()
      {
          //Get Errors
          DataSet Errors = SendQueryReturnDataSet("SELECT * FROM DB.Errors");
          DataTable dt_Errors = Errors.Tables[0];
  
          //Populate all Drop Downs
          for (int i = 0; i &lt; dt_Errors.Rows.Count; i++)
          {
              for (int x = 0; x&lt;8; x++)
              {
                  for (int y = 0; y &lt; 32; y++)
                  {
                      (grid_Wafer.Rows[x].Cells[y] as DataGridViewComboBoxCell).Items.Add(dt_Errors.Rows[i][1].ToString());
                  }
              }
          }
  
      }
  </code></pre>