DataTable dt = DoctorDal.GetDepart().Tables[0];
departlist.ComboBox.DataSource = dt;
departlist.ComboBox.DisplayMember = "department";
departlist.ComboBox.ValueMember = "department";
departlist 是toolStrip 中的一个combobox控件,请问如何实现和独立的combobox控件中加入一项“请选择”。 DataTable dt= DoctorDal.GetDepart().Tables[0];
DataRow newRow = dt.NewRow();
newRow[0] = "请选择 ";
dt.Rows.InsertAt(newRow, 0);
cboxdepart.DataSource = dtdepart;
cboxdepart.DisplayMember = "department";
cboxdepart.ValueMember = "department";cboxdepart 是一个独立的combobox控件请问 departlist 如何实现 cboxdepart一样的效果?
departlist.ComboBox.DataSource = dt;
departlist.ComboBox.DisplayMember = "department";
departlist.ComboBox.ValueMember = "department";
departlist 是toolStrip 中的一个combobox控件,请问如何实现和独立的combobox控件中加入一项“请选择”。 DataTable dt= DoctorDal.GetDepart().Tables[0];
DataRow newRow = dt.NewRow();
newRow[0] = "请选择 ";
dt.Rows.InsertAt(newRow, 0);
cboxdepart.DataSource = dtdepart;
cboxdepart.DisplayMember = "department";
cboxdepart.ValueMember = "department";cboxdepart 是一个独立的combobox控件请问 departlist 如何实现 cboxdepart一样的效果?
你可以用另一个解决方法数据源的sql语句再 union select 0,'请选择' from table然后程序里对这个index为0的数据进行特殊判断就OK了