How to make a row read only in ASP.NET gridview when using autogeneratecolumns="true"

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C#

ASP.NET

SQL

I am using asp.net gridview it was required to show details in vertical format i did that and there is one comment row on click of which im giving option to edit the comment text but now the problem is when i double click anywhere in the grid view row it is giving option to edit i want my first column should be disable and only comment row should be editable and one more thing im using

AutoGenerateColumns="true"

becase i have 150 columns and i cant format each and every column
please suggest sumthing
thanks in advance

What I have tried:

protected void gvDetails_DataBound(object sender, EventArgs e)
   {

       
       int i;
      for (i = 0; i <= gvDetails.Rows.Count - 1; i++)
      {
          gvDetails.Rows[i].Cells[0].Enabled  = false;
      }

       
   }

protected void gvDetails_RowDataBound(object sender, GridViewRowEventArgs e)
  {
      if (e.Row.RowType == DataControlRowType.DataRow)
      {
          e.Row.Attributes["ondblclick"] = Page.ClientScript.GetPostBackClientHyperlink(gvDetails, "Edit$" + e.Row.RowIndex);
          e.Row.Attributes["style"] = "cursor:pointer";
      }



  }
  protected void gvDetails_RowEditing(object sender, GridViewEditEventArgs e)
  {
      gvDetails.EditIndex = e.NewEditIndex;
      //this.BindGrid();
     // gvDetails.Columns[2].Visible = true;
  }