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循环绑定数据到DropDownList1
foreach (SPList ls in web.Lists) {
LIColl.Add(ls.Title);//将数据保存list中
}
dwlist.DataSource = LIColl;//绑定 dwlist.DataBind();//绑定
默认值
DataBound事件:
protected void DropDownList1_DataBound(object sender, EventArgs e) { DropDownList1.Items.Insert(0, new ListItem(“—请选择—“, “0”)); DropDownList1.SelectedIndex = 0; }
获取选的值
写到SelectedIndexChanged事件里面 要先把dropdownlist控件的autopostback属性改为true private void DropDownList1_SelectedIndexChanged(object sender, System.EventArgs e) { this.Label3.Text=this.DropDownList2.SelectedItem.ToString();//text this.Label4.Text=this.DropDownList2.SelectedValue.ToString();//value } 如果用按钮就可以直接写 private void Button1_Click(object sender, System.EventArgs e) { this.Label1.Text=this.DropDownList1.SelectedItem.ToString(); this.Label2.Text=this.DropDownList1.SelectedValue.ToString(); }
转载于:https://www.cnblogs.com/914556495wxkj/p/3629850.html
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