public FrmAdjustBase()
{
    InitializeComponent();
    repositoryItemButtonEdit1.ButtonClick += new DevExpress.XtraEditors.Controls.ButtonPressedEventHandler(repositoryItemButtonEdit1_ButtonClick);
}

private void repositoryItemButtonEdit1_ButtonClick(object sender, DevExpress.XtraEditors.Controls.ButtonPressedEventArgs e)
{
    FrmNew frm = new FrmNew();
    frm.SelectData += new FrmAdjustYarn.SelectDataHandle(frm_SelectData);
    frm.ShowDialog();
}

private void frm_SelectData(string strTest)
{
    gridView1.SetFocusedRowCellValue(gridView1.Columns["YarnHad"], strTest);
}