绑定下拉菜单，显示的时候是一个label，在点编辑的时候才显示出下拉菜单来

html代码部分：

CS代码部分

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DropDownList goodsType = (DropDownList)e.Row.FindControl("DropDownList1");
if (goodsType != null)
{
con = new SqlConnection(ConfigurationManager.ConnectionStrings["TestProviderConnectionString"].ConnectionString);
DataSet ds = new DataSet();
SqlDataAdapter da = new SqlDataAdapter("select * from goodsType",con);
da.Fill(ds,"gt");
goodsType.DataSource = ds.Tables["gt"];
goodsType.DataTextField = "goodsType";
goodsType.DataValueField = "goodsId";
goodsType.DataBind();
}
}