<div class="slds-grid slds-gutters, slds-is-edited" style="margin-left:2px;">
            <lightning:datatable aura:id="conlistId"
                                 data="{!v.wrapperDataRec.contactData}"
                                 columns="{!v.oppCols}"
                                 keyField="id"
                                 hideCheckboxColumn="false"
                                 showRowNumberColumn="true"
                                 onsave="{!c.handleSaveTable}"/>