本文介绍了CheckBoxList未更新,处于已检查/未检查状态的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
嘿,我有一个CheckBoxList,其中填充了数据库。当我对单个复选框的状态(选中或取消选中)进行任何更改时,提交表单时都不会返回。
Hey, I have a CheckBoxList that gets populated with the database. When I make any changes to the state (check or uncheck) of a single checkbox, it doesn't get returned when I submit my form.
最简单的形式是:
<asp:CheckBoxList runat="server" ID="listEmployes" RepeatDirection="Horizontal"> </asp:CheckBoxList>C#:
protected void btnSubmit_Click(object sender, EventArgs e) { _connection.Open(); var employes = listEmployes.Items; foreach (ListItem employe in employes) { if (employe.Selected) { _command = new MySqlCommand(String.Format("INSERT IGNORE INTO Liste_Employes (Projet_ID, User_ID) VALUES ({0}, {1})", _projetId, employe.Value), _connection); } else { _command = new MySqlCommand(String.Format("DELETE IGNORE FROM Liste_Employes WHERE Projet_ID = {0} AND User_ID = {1}", _projetId, employe.Value), _connection); } _command.ExecuteNonQuery(); } }我失踪了什么东西谢谢。
Am I missing something? Thanks.
推荐答案请确保您的CheckBoxList不会在回发时反弹(如果您是从代码进行数据绑定)。
Make sure your CheckBoxList is not being rebound on postbacks (if you're databinding from code).
If(!Page.IsPostBack) { // Bind code }更多推荐
CheckBoxList未更新,处于已检查/未检查状态
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