Disable btnADd if column.status = "O"

Question

Hi

 I want to Disable btnADd if column.status = "O"

try

{

    StringBuilder htmlTable =new StringBuilder();

    string ParticipantType ="";

  

    BALTrainingHeader bALTrainingHeader =new BALTrainingHeader();

    List<TrainingHeader> Result = bALTrainingHeader.GetRecordListDrafted();

  

    if (Result !=null)

    {

        BALEmployee bALEmployee =new BALEmployee();

        htmlTable.Append("<table class='table table-bordered table-hover datatable-highlight' id='tbldata'>");

  

        htmlTable.Append("<thead><tr><th style='display:none'>#</th><th>Training Number</thth class='text-center nosort'>Actions</th><th class='text-center nosort'>Add</th></tr></thead>");

        htmlTable.Append("<tbody>");

        foreach (var columin Result)

        {                      

            htmlTable.Append("<tr>");

            htmlTable.Append("<td style='display:none'>" + colum.TrainingID +"</td>");

            htmlTable.Append("<td>" + colum.TrainingNumber +"</td>");

            htmlTable.Append("<td class='text-center'> <a id='btnAdd' style='cursor:pointer;' class='list-icons-item text-primary-600' data-toggle='modal' data-backdrop='static' data-keyboard='false' data-target='#modal_form_horizontal' onclick='BindData(this);'><i class='icon-pencil7 mr-1'></i></a></td>");

            htmlTable.Append("</tr>");

        }

        htmlTable.Append("</tbody>");

        htmlTable.Append("</table>");

  

        PlaceHolderTable.Controls.Add(new Literal { Text = htmlTable.ToString() });

    }

}

Thanks