DropDownList 如何代码加入值
代码如下:
dpsh.Items.Add(new ListItem( "是 "), Convert.ToString( "是 "));
发生如下错误:
“Add”方法没有采用“2”个参数的重载
[解决办法]
1.从DS中绑定
this.dpdAreas.DataTextField = "AreaName ";
this.dpdAreas.DataValueField = "AreaID ";
this.dpdAreas.DataSource = DS;
this.dpdAreas.DataBind();
你的DS中必须有AreaName和AreaID两个字段
2.自定义数据绑定
for(int i = 10;i <= 50; i += 10)
{
ListItem ls = new ListItem();
ls.Text = i.ToString()+ "人 ";
ls.Value = i.ToString();
this.ddlDisplayNum.Items.Add(ls);
}
this.ddlDisplayNum.Items.Add(new ListItem( "全部 ", " "));
this.ddlDisplayNum.SelectedValue = "20 ";