vb的方法:
Dim dataset As DataSet
DropDownList1.DataTextField = Str(dataset.Tables(0).Columns("字段名"))
DropDownList1.DataValueField = Str(dataset.Tables(0).Columns("字段名"))
DropDownList1.DataSource = dataset.Tables(0)
DropDownList1.DataBind()
C#的方法:
DropDownList1.DataTextField = dataset.Tables[0].Columns["字段名"].ToString();
DropDownList1.DataValueField = dataset.Tables[0].Columns["字段名"].ToString();
DropDownList1.DataSource = dataset.Tables[0];
DropDownList1.DataBind();
C#方法:设置下拉菜单的默认值,为“请选择”如下:
ListItem item = new ListItem("请选择", "0");
this.DropDownList1.Items.Insert(0, item);