Справился-подствив в Width = 0
Код:
grdData.DataSource = dsData.Tables["Order"];

DataGridTableStyle dtStyle = new DataGridTableStyle();
dtStyle.MappingName = "Data";

DataGridColumnStyle dcStyle1 = new DataGridTextBoxColumn();
DataGridColumnStyle dcStyle2 = new DataGridTextBoxColumn();
DataGridColumnStyle dcStyle3 = new DataGridTextBoxColumn();

dcStyle1.MappingName = "ID";
dcStyle1.Width = 0;
dcStyle2.MappingName = "Answer";
dcStyle2.Width = 0;
dcStyle3.MappingName = "Question";
dcStyle3.HeaderText = "Question";
dcStyle3.Width = 240;

dtStyle.GridColumnStyles.Add(dcStyle1);
dtStyle.GridColumnStyles.Add(dcStyle2);
dtStyle.GridColumnStyles.Add(dcStyle3);
grdData.TableStyles.Add(dtStyle);