Add button to certain cell in datagridview

Question

I have created a Datagridview. Now whenever the cell contains an empty value, It will add the plus button to the cell. Something like this:

if ((string)((Hashtable)ht[i])["value"] == "")
  {
     // Create a Save button column
     DataGridViewImageButtonSaveColumn columnSave = new DataGridViewImageButtonSaveColumn();

     // Set column values

     //Add the columns to the grid6
     if (!dataGridView1.Columns.Contains("SaveButton"))
        {
           dataGridView1.Columns.Insert(5, columnSave);
        }
  }
  else
  {
     //hide save button.
  }

But now my problem is that it display the plus button at all cell for that column even though that particular cell have value. How can I hide the button for the cell that have value?

Answer 1

If you only want buttons in some rows then I would tend not to use a DataGridViewButtonColumn . I would use a read-only DataGridViewTextBoxColumn , so that it displays empty cells by default. For those rows where you want a button, you would then create a DataGridViewButtonCell and use the indexer of the grid itself to place that cell at a specific column and row index.